Electro-acoustic conversion efficiency measuring system, method and device

Abstract

The invention discloses an electroacoustic conversion efficiency measuring system, method and device. Relates to the technical field of measurement, the measuring system comprises an ultrasonic transducer, an ultrasonic power measuring device, an ultrasonic excitation source and a control device, the ultrasonic transducer is used for converting a received electric signal into a sound wave signal; the ultrasonic excitation source is used for collecting the target electric power of the electric signal received by the ultrasonic transducer; the ultrasonic power measuring device is used for collecting the target ultrasonic power of the sound wave signal output by the ultrasonic transducer; and the control device is used for obtaining the target electro-acoustic conversion efficiency of the ultrasonic transducer based on the target electric power and the target ultrasonic power. The problem that the operation efficiency is low due to the fact that the operation for determining the electro-acoustic conversion efficiency of the ultrasonic transducer is complex is solved.

Description

Technical Field

[0001] This application relates to the field of measurement technology, and more specifically, to an electroacoustic conversion efficiency measurement system, method, and apparatus. Background Technology

[0002] In the field of ultrasound medical equipment, especially in applications involving ultrasound ablation and diagnostic technologies, the performance of ultrasound transducers is crucial. Measuring the electroacoustic conversion efficiency of ultrasound transducers typically relies on complex hardware systems, including high-frequency ultrasound excitation sources, oscilloscopes, high-frequency voltage probes, and high-frequency current probes. The combined use of these devices leads to operational inconvenience and increased costs.

[0003] Currently, there is no effective solution to the problem that determining the electroacoustic conversion efficiency of ultrasonic transducers is complex and results in low operating efficiency. Summary of the Invention

[0004] The main objective of this application is to provide an electroacoustic conversion efficiency measurement system, method, and apparatus to solve the problem of low operating efficiency caused by the fact that ultrasonic transducers need to output ultrasonic power for a sufficiently long time before an oscilloscope can measure current and voltage signals to calculate electrical power.

[0005] In at least one implementation, this application provides an electroacoustic conversion efficiency measurement system, comprising: an ultrasonic transducer, an ultrasonic power measuring device, an ultrasonic excitation source, and a control device. The ultrasonic transducer converts a received electrical signal into a sound wave signal; the ultrasonic excitation source acquires the target electrical power of the electrical signal received by the ultrasonic transducer; the ultrasonic power measuring device acquires the target ultrasonic power of the sound wave signal output by the ultrasonic transducer; and the control device calculates the target electroacoustic conversion efficiency of the ultrasonic transducer based on the target electrical power and the target ultrasonic power. The ultrasonic excitation source and ultrasonic power measuring device enable the acquisition and measurement of the target electrical power and target ultrasonic power in a short time. The control device, based on the real-time acquired target electrical power and target ultrasonic power, facilitates the rapid calculation of the target electroacoustic conversion efficiency of the ultrasonic transducer. Compared to traditional methods that require long-term monitoring of current and voltage signals using an oscilloscope to calculate electrical power, this solution simplifies the measurement process, improves measurement efficiency, and effectively avoids the sound power attenuation phenomenon easily caused by large-dose output, thereby improving measurement accuracy.

[0006] In at least one implementation, the system further includes a motion mechanism; before acquiring the target electrical power of the electrical signal received by the ultrasonic transducer, the control device is further configured to acquire a signal parameter set and a position information set, the signal parameter set including at least one group of signal parameters, the position information set including at least one position information, each position information corresponding to one group of signal parameters, and the positions corresponding to at least one position information being located on the same horizontal line; the control device is further configured to output the signal parameter set and the position information set; the motion mechanism is configured to receive the position information set and, based on each position information in the position information set, control the ultrasonic transducer to move to the position corresponding to each position information; the ultrasonic excitation source is further configured to receive the signal parameter set and, when the motion mechanism reaches the position corresponding to each position information, output an electrical signal to the ultrasonic transducer based on the group of signal parameters corresponding to each position information; the ultrasonic excitation source is further configured to acquire the target electrical power of the electrical signal corresponding to each group of signal parameters received by the ultrasonic transducer; the ultrasonic power measurement device is further configured to acquire the target ultrasonic power of the sound wave signal output by the ultrasonic transducer after the ultrasonic transducer receives the electrical signal corresponding to each group of signal parameters. Testing at different locations helps avoid the problem of ultrasonic power attenuation caused by the ultrasonic transducer outputting multiple times at a single location, thus improving the stability of the measurement and the reliability of the data.

[0007] In at least one implementation, the system further includes a rotating mechanism: the control device is also configured to output rotation angle information; the rotating mechanism is configured to receive the rotation angle information and, based on the rotation angle information, drive the ultrasonic transducer to rotate so that the output focus of the ultrasonic transducer is located at the ultrasonic power measuring device. The rotating mechanism helps ensure that the output focus of the ultrasonic transducer is always aligned with the ultrasonic power measuring device during testing and eliminates the influence of directional deviation on the measurement results, thereby helping to improve the accuracy and consistency of electroacoustic conversion efficiency measurement.

[0008] In at least one implementation, the tangent of the ultrasonic transducer is parallel to the ultrasonic power measuring device. Maintaining the parallelism between the tangent of the ultrasonic transducer and the ultrasonic power measuring device helps the sound waves output by the ultrasonic transducer to be transmitted to the ultrasonic power measuring device via an optimal path, thereby reducing sound power loss and improving measurement accuracy.

[0009] In at least one implementation, the ultrasonic power measuring device includes an absorbing target and an ultrasonic power meter: the absorbing target is used to absorb the acoustic signal output by the ultrasonic transducer in order to acquire the target acoustic power; the ultrasonic power meter is used to obtain the target ultrasonic power based on the target change generated by the absorbing target when it absorbs the acoustic signal. By acquiring acoustic signals in different regions of the absorbing target, material property degradation or measurement deviation caused by repeated absorption of acoustic waves in a single region is avoided. The ultrasonic power meter helps to monitor and quantify minute changes on the surface of the absorbing target in real time, such as changes in temperature, pressure, or vibration amplitude, thereby improving the accuracy of acoustic power measurement.

[0010] In at least one implementation, the control device is further configured to acquire the current position information of the ultrasonic transducer and the target measurement range of the ultrasonic power measuring device, and, based on the current position information and the target measurement range, detect whether the ultrasonic power measuring device has been used up. Determining whether the ultrasonic power measuring device has been used up helps ensure full utilization of the absorption target and avoids performance degradation caused by over-testing of local areas, thereby improving the overall efficiency and cost-effectiveness of the test.

[0011] In at least one implementation, the ultrasonic excitation source includes an electrical power measurement module; the electrical power measurement module is used to acquire the target electrical power of the electrical signal received by the ultrasonic transducer. Integrated electrical power measurement avoids the need for additional equipment such as external oscilloscopes and voltage / current probes, helping to simplify the testing process and reduce equipment costs and operational complexity.

[0012] In at least one implementation, the measurement system further includes a storage unit for storing the target electroacoustic conversion efficiency, which is used by the target device to control the electrical signal output to the ultrasonic transducer based on the target electroacoustic conversion efficiency and the expected ultrasonic power. By utilizing the electroacoustic conversion efficiency data in the storage unit, the target device can precisely control the electrical signal output to the ultrasonic transducer, helping to ensure the ultrasonic transducer stably outputs the expected ultrasonic power and improve the accuracy and consistency of the ultrasonic equipment's operation.

[0013] In at least one implementation, the target electrical power includes at least one sub-electrical power, and the target ultrasonic power includes at least one sub-ultrasonic power, with each sub-electrical power corresponding to one sub-ultrasonic power. The control device is further configured to perform fitting based on each of the at least one sub-electrical power and the corresponding sub-ultrasonic power to obtain a fitting curve, and to obtain the target electroacoustic conversion efficiency based on the fitting curve. The fitting curve provides a more continuous and smoother data representation, which helps improve the calculation accuracy of the target electroacoustic conversion efficiency compared to direct calculation based solely on discrete data points.

[0014] In at least one implementation, this application provides a method for measuring electroacoustic conversion efficiency, the method comprising: acquiring a target electrical power of an electrical signal received by an ultrasonic transducer; acquiring a target ultrasonic power of an acoustic signal output by the ultrasonic transducer; and obtaining a target electroacoustic conversion efficiency of the ultrasonic transducer based on the target electrical power and the target ultrasonic power.

[0015] In at least one implementation, before acquiring the target electrical power of the electrical signal received by the ultrasonic transducer, the method further includes: acquiring a signal parameter set and a position information set, wherein the signal parameter set includes at least one group of signal parameters, the position information set includes at least one position information, each position information corresponds to one group of signal parameters, the positions corresponding to at least one position information are located on the same horizontal line, and the positions corresponding to at least one position information are located above the ultrasonic power measuring device; outputting the signal parameter set and the position information set, wherein the position information set is used by the motion mechanism to control the ultrasonic transducer to move to the position corresponding to each position information based on each position information in the position information set; the signal parameter set is used by the ultrasonic excitation source to output an electrical signal to the ultrasonic transducer based on the signal parameter group corresponding to each position information when the motion mechanism reaches the position corresponding to each position information, so as to obtain the target electrical power and the target ultrasonic power corresponding to each group of signal parameters.

[0016] In at least one implementation, before acquiring the signal parameter set, the method further includes: acquiring rotation angle information; and sending the rotation angle information, wherein the rotation angle information is used to cause the rotating mechanism to drive the ultrasonic transducer to rotate based on the rotation angle information, so that the output focus of the ultrasonic transducer is located at the ultrasonic power measuring device.

[0017] In at least one implementation, the tangent of the ultrasonic transducer is parallel to the ultrasonic power measuring device.

[0018] In at least one implementation, after outputting the signal parameter set and the position information set, the method further includes: acquiring the current position information of the ultrasonic transducer and the target measurement range of the ultrasonic power measuring device; and detecting whether the ultrasonic power measuring device has been used up based on the current position information and the target measurement range.

[0019] In at least one implementation, the ultrasonic power measuring device includes an absorption target and an ultrasonic power meter; the absorption target is used to absorb the acoustic signal output by the ultrasonic transducer; the ultrasonic power meter obtains the target ultrasonic power based on the target change generated when the absorption target absorbs the acoustic signal.

[0020] In at least one implementation, the target electrical power includes at least one sub-electrical power, the target ultrasonic power includes at least one sub-ultrasonic power, and each sub-electrical power corresponds to one sub-ultrasonic power; based on the target electrical power and the target ultrasonic power, the target electroacoustic conversion efficiency of the ultrasonic transducer is obtained, including: fitting a fitting curve based on each of the at least one sub-electrical power and the corresponding sub-ultrasonic power to obtain a fitting curve; and obtaining the target electroacoustic conversion efficiency based on the fitting curve.

[0021] In at least one implementation, after obtaining the target electroacoustic conversion efficiency, the method further includes: determining a target ultrasonic transducer to be used and the expected ultrasonic power of the target ultrasonic transducer; obtaining the target electroacoustic conversion efficiency corresponding to the target ultrasonic transducer; determining the received electrical power of the target ultrasonic transducer based on the expected ultrasonic power and the target electroacoustic conversion efficiency; and outputting target signal parameters based on the received electrical power, wherein the target signal parameters are used for the ultrasonic excitation source to output a target electrical signal, and the power of the target electrical signal is the received electrical power.

[0022] In at least one implementation, this application provides an electroacoustic conversion efficiency measuring device, the device comprising: a first acquisition unit for acquiring the target electrical power of an electrical signal received by an ultrasonic transducer; a second acquisition unit for acquiring the target ultrasonic power of an acoustic signal output by the ultrasonic transducer; and an electroacoustic conversion efficiency determining unit for determining the target electroacoustic conversion efficiency of the ultrasonic transducer based on the target electrical power and the target ultrasonic power.

[0023] In at least one implementation, the apparatus further includes: a third acquisition unit, configured to acquire a signal parameter set and a position information set before acquiring the target electrical power of the electrical signal received by the ultrasonic transducer, wherein the signal parameter set includes at least one group of signal parameters, the position information set includes at least one position information, each position information corresponds to one group of signal parameters, and the positions corresponding to at least one position information are located on the same horizontal line; a first output unit, configured to output the signal parameter set and the position information set, wherein the position information set is used by the motion mechanism to control the ultrasonic transducer to move to the position corresponding to each position information based on each position information in the position information set; the signal parameter set is used by the ultrasonic excitation source to output an electrical signal to the ultrasonic transducer based on the signal parameter group corresponding to each position information when the motion mechanism reaches the position corresponding to each position information, so as to obtain the target electrical power corresponding to each group of signal parameters and the target ultrasonic power corresponding to each group of signal parameters.

[0024] Optionally, the device further includes: a fourth acquisition unit, configured to acquire rotation angle information before acquiring the signal parameter set; and a transmission unit, configured to transmit the rotation angle information, wherein the rotation angle information is used to cause the rotation mechanism to drive the ultrasonic transducer to rotate based on the rotation angle information, so that the output focus of the ultrasonic transducer is located in the ultrasonic power measurement device.

[0025] Optionally, the tangent of the ultrasonic transducer is parallel to the ultrasonic power measuring device.

[0026] Optionally, the device further includes: a fifth acquisition unit, configured to acquire the current position information of the ultrasonic transducer and the target measurement range of the ultrasonic power measuring device after outputting the signal parameter set and the position information set; and a detection unit, configured to detect whether the ultrasonic power measuring device has been used up based on the current position information and the target measurement range.

[0027] Optionally, the ultrasonic power measuring device includes an absorption target and an ultrasonic power meter; the absorption target is used to absorb the acoustic signal output by the ultrasonic transducer; the ultrasonic power meter obtains the target ultrasonic power based on the target change generated when the absorption target absorbs the acoustic signal.

[0028] Optionally, the target electrical power includes at least one sub-electrical power, and the target ultrasonic power includes at least one sub-ultrasonic power, with each sub-electrical power corresponding to one sub-ultrasonic power; the electroacoustic conversion efficiency determination unit includes: a fitting module, used to fit each of the at least one sub-electrical power and the sub-ultrasonic power corresponding to each sub-electrical power to obtain a fitting curve; and a calculation module, used to obtain the target electroacoustic conversion efficiency based on the fitting curve.

[0029] Optionally, the device further includes: a first determining unit, configured to determine a target ultrasonic transducer to be used and the expected ultrasonic power of the target ultrasonic transducer after obtaining the target electroacoustic conversion efficiency; a fifth acquiring unit, configured to acquire the target electroacoustic conversion efficiency corresponding to the target ultrasonic transducer; a second determining unit, configured to determine the received electrical power of the target ultrasonic transducer based on the expected ultrasonic power and the target electroacoustic conversion efficiency; and a second output unit, configured to output target signal parameters based on the received electrical power, wherein the target signal parameters are used by the ultrasonic excitation source to output a target electrical signal, and the power of the target electrical signal is the received electrical power.

[0030] According to another aspect of the present invention, a computer-readable storage medium is also provided, wherein the storage medium stores a program, wherein the program controls the device where the storage medium is located to execute the electroacoustic conversion efficiency measurement method described above when the program is running.

[0031] According to another aspect of the present invention, a handle is also provided, comprising: a motion mechanism, a rotation mechanism, an ultrasonic excitation unit, and a control device for performing the electroacoustic conversion efficiency measurement method described in any one of the above embodiments. Attached Figure Description

[0032] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0033] Figure 1 This is a schematic diagram of an electroacoustic conversion efficiency measurement system provided in some embodiments of this application. Figure 1 ;

[0034] Figure 2 This is a schematic diagram of an electroacoustic conversion efficiency measurement system provided in some embodiments of this application. Figure 2 ;

[0035] Figure 3 This is a schematic diagram of an electroacoustic conversion efficiency measurement system provided in some embodiments of this application. Figure 3 ;

[0036] Figure 4This is a schematic diagram of an electroacoustic conversion efficiency measurement system provided in some embodiments of this application. Figure 4 ;

[0037] Figure 5 The flowchart of the electroacoustic conversion efficiency measurement method provided according to some embodiments of this application Figure 1 ;

[0038] Figure 6 The flowchart of the electroacoustic conversion efficiency measurement method provided according to some embodiments of this application Figure 2 ;

[0039] Figure 7 This is a schematic diagram of an electroacoustic conversion efficiency measuring device provided according to some embodiments of this application. Detailed Implementation

[0040] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0041] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0042] It should be understood that the examples and illustrations in this application are for illustrative purposes, and deviations and variations can be constructed and deployed based on the teachings of this application without departing from the scope of this application. Before detailing at least one embodiment of this application, it should be understood that this application is not necessarily limited to the detailed configuration and arrangement of the components and / or methods set forth in the following description and / or illustrated in the drawings and / or embodiments. This application can have other embodiments or can be practiced or implemented in different ways.

[0043] Unless otherwise defined, all technical and / or scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. While similar or equivalent methods and materials to those described in this application may be used to practice or test embodiments of this application, exemplary methods and / or materials are described below. In the event of any conflict, the specification (including definitions) of this application shall prevail. Furthermore, these materials, methods, and embodiments are illustrative only and are not intended to impose necessary limitations.

[0044] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, the terms "first," "second," etc., are used merely for descriptive distinction and have no special meaning.

[0045] In this application, the distal end refers to the end of the system and at least some of the components constituting the system that are exemplarily far from the operator during use (or, the distal end refers to the end of the system and at least some of the components constituting the system that exemplarily come into contact with / intervene in the biological tissue when used on a living organism), and the proximal end refers to the end of the system and at least some of the components constituting the system that are exemplarily close to the operator during operation (or, the proximal end refers to the end of the system and at least some of the components constituting the system that are exemplarily far from the biological tissue when used on a living organism compared to the distal end).

[0046] It should be noted that the information collected in this application (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for display, data used for analysis, etc.) are information and data authorized by the user or fully authorized by all parties. Furthermore, the collection, storage, use, processing, transmission, provision, disclosure, and application of this data all comply with relevant laws, regulations, and standards, necessary confidentiality measures have been taken, and they do not violate public order and good morals. Corresponding access points are provided for users to choose to authorize or refuse. For example, interfaces are set up between this system and relevant users or organizations, providing users with corresponding access points to choose to agree to or refuse automated decision-making results; if the user chooses to refuse, the process proceeds to the expert decision-making stage.

[0047] In related technologies, measuring the electroacoustic conversion efficiency of ultrasonic transducers typically relies on complex hardware systems, including high-frequency ultrasonic excitation sources, acoustic power meters, oscilloscopes, high-frequency voltage probes, and high-frequency current probes. While the combined use of these devices can provide relatively accurate efficiency measurements, it also introduces operational inconvenience and increased costs. Furthermore, the ultrasonic transducer needs to continuously output ultrasonic power for a sufficiently long time for accurate oscilloscope measurement, which not only increases operational complexity but may also lead to excessive accumulation of ultrasonic energy in the medium, affecting the accuracy and reliability of the measurement.

[0048] To address the aforementioned problems, according to some embodiments of this application, the following are provided: Figure 1 The diagram shows a schematic of an electroacoustic conversion efficiency measurement system. Figure 1 .like Figure 1 As shown, the measurement system includes: an ultrasonic transducer 10, an ultrasonic power measuring device 20, an ultrasonic excitation source 30, and a control device 40. The ultrasonic transducer 10 is used to convert the received electrical signal into an acoustic signal; the ultrasonic excitation source 30 is used to acquire the target electrical power of the electrical signal received by the ultrasonic transducer 10; the ultrasonic power measuring device 20 is used to acquire the target ultrasonic power of the acoustic signal output by the ultrasonic transducer 10; and the control device 40 is used to obtain the target electroacoustic conversion efficiency of the ultrasonic transducer based on the target electrical power and the target ultrasonic power.

[0049] In some embodiments, at least one of the control device and the ultrasonic excitation source may be integrated into the operating handle or may be set separately from the operating handle, which is not limited here.

[0050] In some embodiments, the electroacoustic conversion efficiency measurement system provided in some embodiments of this application is equipped with an ultrasonic transducer 10, which converts electrical signals into mechanical vibrations, thereby generating high-frequency sound waves (i.e., the sound wave signals described above). The ultrasonic transducer is designed to convert electrical energy received from the ultrasonic excitation source 30 into high-frequency sound waves and directionally transmit these sound waves to the ultrasonic power measurement device 20 for accurate measurement of electroacoustic conversion efficiency.

[0051] The ultrasonic excitation source 30 collects the target electrical power of the electrical signal received by the ultrasonic transducer 10 and transmits the collected target electrical power to the control device 40. This allows the system to monitor and quantify the electrical energy input to the ultrasonic transducer in real time, providing crucial data for calculating the electroacoustic conversion efficiency. The electroacoustic conversion efficiency measurement system also includes an ultrasonic power measurement device 20. The ultrasonic power measurement device 20 collects the target ultrasonic power of the sound wave signal output by the ultrasonic transducer 10. For example, the ultrasonic power measurement device 20 receives the sound wave emitted by the ultrasonic transducer and calculates the target ultrasonic power using built-in precision sensors and measurement circuits.

[0052] In some embodiments, the control device 40 is responsible for coordinating data collection, processing, and electroacoustic conversion efficiency calculation throughout the system. The control device 30 receives the target electrical power acquired from the ultrasonic excitation source 30 and the target ultrasonic power acquired from the ultrasonic power measuring device 20, and can then use a mathematical model to calculate the electroacoustic conversion efficiency. For example, the target electroacoustic conversion efficiency of the ultrasonic transducer can be obtained by the ratio of the acoustic power to the electrical power output by the ultrasonic transducer.

[0053] In some embodiments, the control device 40 can also manage and control the entire measurement process. It can also provide a user-friendly interface that allows users to input test commands, set test parameters, and view real-time data and test results.

[0054] In summary, by using an ultrasonic excitation source and an ultrasonic power measurement device, the target electrical power can be acquired and the target ultrasonic power measured in a short time. Based on the real-time acquired target electrical and ultrasonic power, the control device facilitates the rapid calculation of the target electroacoustic conversion efficiency of the ultrasonic transducer. Compared to traditional methods that require long-term monitoring of current and voltage signals with an oscilloscope to calculate electrical power, this solution simplifies the measurement process, improves measurement efficiency, and effectively avoids the acoustic power attenuation phenomenon that easily occurs with large-dose output, thus contributing to improved measurement accuracy.

[0055] In one possible implementation, Figure 2 This is a schematic diagram of an electroacoustic conversion efficiency measurement system provided in some embodiments of this application. Figure 2 .like Figure 2 As shown, the measurement system also includes a motion mechanism 50; before acquiring the target electrical power of the electrical signal received by the ultrasonic transducer, the control device 40 is also used to acquire a signal parameter set and a position information set. The signal parameter set includes at least one group of signal parameters, and the position information set includes at least one position information. Each position information corresponds to one group of signal parameters, and the positions corresponding to at least one position information are located on the same horizontal line. The control device 40 is also used to output the signal parameter set and the position information set. The motion mechanism 50 is used to receive the position information set and, based on each position information in the position information set, control the ultrasonic transducer 10 to move to the position corresponding to each position information. The ultrasonic excitation source 30 is also used to receive the signal parameter set and, when the motion mechanism reaches the position corresponding to each position information, output an electrical signal to the ultrasonic transducer based on the group of signal parameters corresponding to each position information. The ultrasonic excitation source 30 is also used to acquire the target electrical power of the electrical signal corresponding to each group of signal parameters received by the ultrasonic transducer 10. The ultrasonic power measuring device 20 is also used to acquire the target ultrasonic power of the sound wave signal output by the ultrasonic transducer 10 after the ultrasonic transducer 10 receives the electrical signal corresponding to each group of signal parameters.

[0056] In some embodiments, the motion mechanism may be integrated into the operating handle or may be set separately from the operating handle; no limitation is made here.

[0057] In some embodiments, the distance between the location corresponding to at least one position and the ultrasonic power measuring device is the shortest distance between the ultrasonic transducer and its focal point.

[0058] In some embodiments, the angle between the tangent of the ultrasonic transducer and the horizontal direction is a first angle, which is used to position the output focus of the ultrasonic transducer on the ultrasonic measuring device.

[0059] In some embodiments, the ultrasonic transducer is a sheet transducer or a curved transducer, which is not limited herein.

[0060] In some embodiments, the addition of a motion mechanism aims to precisely position the ultrasonic transducer, ensuring its energy output at different positions relative to the ultrasonic power measurement device, thereby eliminating the influence of position factors on ultrasonic power measurement. The control device 40 can receive a set of signal parameters and a set of position information input by the tester through an interactive interface. The signal parameter set contains at least one group of signal parameters, each group defining the output characteristics of the ultrasonic excitation source under a specific test scenario. The signal parameter groups can cover various attributes such as driving voltage, frequency, and pulse width to simulate the operating state of the ultrasonic transducer under different electroacoustic conversion conditions, such as different output frequency values ​​or different output voltage values. By setting diverse signal parameter groups, the system can comprehensively evaluate the electroacoustic conversion efficiency of the ultrasonic transducer, ensuring that the test covers a wide range of possible operating scenarios.

[0061] The location information set contains at least one location information, and each location information corresponds to a set of signal parameters. Each location information corresponds to a set of signal parameters in the signal parameter set; that is, under different sets of signal parameters, the ultrasonic transducer is placed in different, but predefined, precise positions. It should be noted that the positions corresponding to at least one location information must be on the same horizontal line. By controlling the location information to be on the same horizontal line, the focal point is also on the same horizontal line, avoiding measurement errors caused by inconsistent standards due to changes in the focal point position. Furthermore, by corresponding the location information to a set of signal parameters in the signal parameter set, it is beneficial to avoid the ultrasonic transducer outputting multiple times from the same position, which could affect the measurement of acoustic power.

[0062] In some embodiments, the control device 40 dynamically schedules the motion mechanism 50 according to the signal parameter set and the position information set, ensuring that the ultrasonic transducer 10 can receive electrical signals at the position corresponding to each signal parameter set and convert them into acoustic signals for testing. This dynamic coordination method enables the system to accurately evaluate the performance of the ultrasonic transducer under different electroacoustic conversion conditions.

[0063] In some embodiments, the control device 40 outputs a set of position information to the motion mechanism 50. Based on each position information in the set, the motion mechanism 50 controls the ultrasonic transducer 10 to move to the position corresponding to each position information. It should be noted that the ultrasonic transducer 10 can be clamped on the motion mechanism 50. The motion mechanism 50 controls the ultrasonic transducer 10 to move by a certain displacement coordinate according to the received position information, thereby moving to the exact position corresponding to each position information.

[0064] The control device 40 outputs a set of signal parameters to the ultrasonic excitation source 30. The ultrasonic excitation source 30 outputs an electrical signal to the ultrasonic transducer 10 according to each group of signal parameters in the set, and simultaneously collects the target electrical power received by the ultrasonic transducer 10. The ultrasonic power measuring device 20 accurately collects the target ultrasonic power after the ultrasonic transducer 10 receives the signal and outputs a sound wave. The control device 40 analyzes all the collected electrical and ultrasonic power data, calculates the electroacoustic conversion efficiency under different positions and signal parameter conditions, and thus obtains more comprehensive and reliable test results.

[0065] By testing at different locations, the problem of ultrasonic power attenuation caused by multiple outputs of the ultrasonic transducer at a single location is avoided, which helps to improve the stability of long-term measurements and the reliability of data.

[0066] In one possible implementation, such as Figure 2 As shown, the measurement system also includes a rotation mechanism 60: the control device 40 is also used to output rotation angle information; the rotation mechanism 60 is used to receive rotation angle information and drive the ultrasonic transducer 10 to rotate based on the rotation angle information so that the output focus of the ultrasonic transducer 10 is located at the ultrasonic power measurement device 20.

[0067] In some embodiments, the motion mechanism may be integrated into the operating handle or may be set separately from the operating handle; no limitation is made here.

[0068] In some embodiments, the rotation angle of the ultrasonic transducer 10 can be precisely controlled by the rotating mechanism 60 to ensure that its output focus is always aligned with the ultrasonic power measuring device 20, thus preventing the ultrasonic power measuring device from not receiving ultrasonic waves or receiving only partial ultrasonic waves, thereby helping to eliminate the influence of directional deviation on the sound power measurement results. The control device 40 outputs rotation angle information to the rotating mechanism 60, and then the rotating mechanism 60 controls the ultrasonic transducer 10 to rotate according to the received rotation angle information, thereby adjusting the output focus of the transducer to be aligned with the ultrasonic power measuring device 20.

[0069] The rotating mechanism ensures that the output focus of the ultrasonic transducer is always aligned with the ultrasonic power measuring device during the test, eliminating the influence of directional deviation on the measurement results and improving the accuracy and consistency of electroacoustic conversion efficiency measurement.

[0070] In one possible implementation, in the electroacoustic conversion efficiency measurement system, the tangent of the ultrasonic transducer 10 is parallel to the ultrasonic power measurement device 20.

[0071] In some embodiments, the ultrasonic transducer is a sheet transducer or a curved transducer, etc., and there is no limitation herein.

[0072] In some embodiments, in order to further improve the accuracy of the electroacoustic conversion efficiency measurement, the tangent of the ultrasonic transducer 10 needs to be parallel to the ultrasonic power measuring device 20 to ensure that the sound waves output by the ultrasonic transducer can be transmitted to the ultrasonic power measuring device along the optimal path, thereby reducing sound power loss and helping to improve the accuracy of the measurement.

[0073] In one possible implementation, in the electroacoustic conversion efficiency measurement system provided in this application embodiment, the ultrasonic power measurement device 20 includes an absorption target 200 and an ultrasonic power meter 201: Regarding the target acoustic power of the acoustic wave signal output by the ultrasonic transducer 10, the absorption target 200 is used to absorb the acoustic wave signal output by the ultrasonic transducer 10; the ultrasonic power meter 201 is used to obtain the target ultrasonic power based on the target change generated by the absorption target 200 when it absorbs the acoustic wave signal.

[0074] In some embodiments, such as Figure 3 As shown, the ultrasonic power measuring device 20 includes an absorption target 200 and an ultrasonic power meter 201. The absorption target 200 is used to absorb the acoustic wave signal output by the ultrasonic transducer 10. For example, the absorption target 200 can be divided into regions, each region corresponding to the aforementioned position information. By absorbing the acoustic wave signal output by the ultrasonic transducer 10 in different regions, the measurement of acoustic power is prevented from being affected by the ultrasonic transducer outputting multiple times at the same position on the absorption target.

[0075] The function of the ultrasonic power meter 201 is to monitor and quantify the change in the target 200 when it absorbs an acoustic signal, and then calculate the target ultrasonic power based on the change in the target. For example, a thermistor, piezoelectric crystal, or force sensor can be used to sense the change in the target surface. The sensor converts the change in the target into a measurable electrical signal, and then the ultrasonic power meter 201 uses a predefined algorithm or mathematical model to convert the received electrical signal into the target ultrasonic power.

[0076] In some embodiments, the ultrasonic transducer 10 is separated from the absorption target 200 by a predetermined distance (e.g., the shortest distance between the tangent of the ultrasonic transducer 10 and the focal point of the transducer). The ultrasonic transducer 10 moves left and right on the absorption target 200 to ensure that the focal point of the ultrasonic transducer 10 is always on the absorption target, which helps to ensure the accuracy of the measurement. The absorption target 200 can be placed horizontally in water, and the ultrasonic power meter 201 collects the acoustic power of the ultrasonic transducer 10 acting on the absorption target 200 and uploads it to the control device 40. When the ultrasonic wave irradiates the absorption target 200, it will generate a radiating force on the target. By accurately measuring this radiating force and combining it with acoustic theory formulas, the ultrasonic power can be calculated.

[0077] By acquiring acoustic signals from different regions of the absorbing target, material property degradation or measurement deviations caused by repeated acoustic absorption in a single region are avoided. Using an ultrasonic power meter helps to monitor and quantify minute changes on the surface of the absorbing target in real time, such as variations in temperature, pressure, or vibration amplitude, thereby improving the accuracy of acoustic power measurements.

[0078] In one possible implementation, in the electroacoustic conversion efficiency measurement system provided in this application embodiment, the control device 40 is further configured to acquire the current position information of the ultrasonic transducer 10 and the target measurement range of the ultrasonic power measuring device 20, and detect whether the ultrasonic power measuring device 20 has been used up based on the current position information and the target measurement range.

[0079] In some embodiments, the coordinate position information of the ultrasonic transducer 10 can be recorded by the motion mechanism 50. Then, the control device 40 obtains the current position information of the ultrasonic transducer 10 and the target measurement range of the ultrasonic power measuring device 20 from the motion mechanism 50. It should be noted that the target measurement range of the ultrasonic power measuring device 20 can be the area of ​​the absorbing target 200 that can be used to absorb sound wave signals. The control device 40 can detect whether the ultrasonic power measuring device 20 has been used up based on the current position information of the ultrasonic transducer 10 and the target measurement range.

[0080] In some embodiments, the control device 40 can receive the ultrasonic transducer position information fed back by the motion mechanism 50 in real time, and through analysis, ensure that the ultrasonic transducer moves uniformly on the absorption target, and record the position of each test point to avoid repeated testing of the same area.

[0081] Determining whether the ultrasonic power measurement device has been fully utilized helps ensure the absorption target is fully utilized and avoids performance degradation caused by over-testing of local areas, thereby improving the overall efficiency and cost-effectiveness of the test.

[0082] In one possible implementation, in the electroacoustic conversion efficiency measurement system provided in some embodiments of this application, the ultrasonic excitation source 30 includes an electrical power measurement module; the electrical power measurement module is used to acquire the target electrical power of the electrical signal received by the ultrasonic transducer.

[0083] In some embodiments, the ultrasonic excitation source 30 may integrate an electrical power measurement module, which can continuously monitor and record the instantaneous electrical power received by the ultrasonic transducer at different driving frequencies or voltage values, i.e., the aforementioned target electrical power.

[0084] Integrated power measurement eliminates the need for external oscilloscopes and additional equipment such as voltage and current probes, simplifying the testing process and reducing equipment costs and operational complexity.

[0085] In practical applications, the electroacoustic conversion efficiency of ultrasonic transducers is affected by manufacturing processes and material properties, resulting in variations in the output ultrasonic power of different transducers even under the same driving conditions. This inconsistency in power output directly impacts the equipment's effectiveness and therapeutic outcomes, especially when operating the same host system with different transducers (single or integrated within a catheter).

[0086] In order to make the output acoustic power of different transducers (which may be a conduit including at least one transducer or a conduit including one transducer) connected to the same host have the same output acoustic power, in one possible implementation, the electroacoustic conversion efficiency measurement system provided in some embodiments of this application further includes a storage unit 70: the storage unit 70 is used to store the target electroacoustic conversion efficiency, which is used by the target device to control the electrical signal output to the ultrasonic transducer 10 based on the target electroacoustic conversion efficiency and the expected ultrasonic power.

[0087] In some embodiments, such as Figure 4As shown, the electroacoustic conversion efficiency measurement system is also equipped with a storage unit 70. After the control device 40 calculates the target electroacoustic conversion efficiency of the ultrasonic transducer based on the target electrical power and the target ultrasonic power, the target electroacoustic conversion efficiency is stored in the storage unit 70. When the target device needs to control the ultrasonic transducer 10 to work, the corresponding target electroacoustic conversion efficiency can be read from the storage unit 70 by the control device 40. Then, based on the target electroacoustic conversion efficiency and the expected ultrasonic power, the target device controls the electrical signal output to the ultrasonic transducer 10, thereby causing the ultrasonic transducer 10 to output the expected ultrasonic power.

[0088] In some embodiments, the storage unit may be disposed on the ultrasonic transducer or in a conduit including the ultrasonic transducer, without particular limitation.

[0089] The target device uses the electroacoustic conversion efficiency data in the storage unit to precisely control the electrical signal output to the ultrasonic transducer, which helps to ensure that the ultrasonic transducer outputs the expected ultrasonic power stably and improves the accuracy and consistency of the ultrasonic equipment operation.

[0090] In one possible implementation, in the electroacoustic conversion efficiency measurement system provided in some embodiments of this application, the target electrical power includes at least one sub-electrical power, the target ultrasonic power includes at least one sub-ultrasonic power, and each sub-electrical power corresponds to one sub-ultrasonic power; the control device 40 is further configured to fit each sub-electrical power and the corresponding sub-ultrasonic power in the at least one sub-electrical power to obtain a fitting curve, and obtain the target electroacoustic conversion efficiency based on the fitting curve.

[0091] In some embodiments, the target electrical power and target ultrasonic power are not limited to a single value. The target electrical power includes at least one sub-electrical power, and the target ultrasonic power includes at least one sub-ultrasonic power, with each sub-electrical power corresponding to a sub-ultrasonic power. The control device 40 controls the ultrasonic excitation source 30 to output multiple pulse modulation signals with different parameters (such as frequency and voltage) to drive the ultrasonic transducer 10 to work. At the same time, the electrical power measurement module built into the ultrasonic excitation source collects the corresponding sub-electrical power, and the ultrasonic power measurement device 20 collects the corresponding sub-ultrasonic power to obtain one or more sets of sub-electrical power and sub-ultrasonic power.

[0092] Then, the control device 40 further performs statistical analysis on the collected multiple sets of sub-electrical power and sub-ultrasonic power data, and uses mathematical models (such as linear regression, polynomial fitting, exponential functions, etc.) to perform fitting, generating one or a set of fitting curves that can describe the trend of electroacoustic conversion efficiency. Finally, the target electroacoustic conversion efficiency is obtained based on the fitting curves.

[0093] In an alternative embodiment, the fitted curve can be directly used as the final test result. By reverse searching through the fitted curve, the optimal electrical power that can achieve the ultrasonic power target can be determined.

[0094] By fitting curves, a more continuous and smooth data representation can be provided, which helps to improve the calculation accuracy of the target electroacoustic conversion efficiency compared to direct calculation based solely on discrete data points.

[0095] Under the aforementioned electroacoustic conversion efficiency measurement system, some embodiments of this application provide, as follows: Figure 5 The method for measuring electroacoustic conversion efficiency is shown. Figure 5 This is a flowchart of the electroacoustic conversion efficiency measurement method provided in the embodiments of this application. Figure 1 It should be noted that the electroacoustic conversion efficiency measurement method provided in this application embodiment can be applied to the above-mentioned electroacoustic conversion efficiency measurement system, and the electroacoustic conversion efficiency of the ultrasonic transducer can be measured through the control device of the electroacoustic conversion efficiency measurement system.

[0096] Step S501: Obtain the target electrical power of the electrical signal received by the ultrasonic transducer.

[0097] In some embodiments, the control device may be integrated into the handle or may be separate from the handle; this is not limited thereto. The control device controls the ultrasonic transducer to enter the working mode; then, the control device acquires the target electrical power of the electrical signal received by the ultrasonic transducer in the working state.

[0098] In some embodiments, the ultrasonic power excitation source can be controlled by a control device to output a drive signal to the ultrasonic transducer, and the actual target electrical power input to the ultrasonic transducer can be monitored in real time by the built-in electrical power measurement module of the ultrasonic power excitation source.

[0099] In some embodiments, at least one of the control device and the ultrasonic excitation source may be integrated into the operating handle or may be set separately from the operating handle, which is not limited here.

[0100] In some embodiments, the ultrasonic transducer is a sheet transducer or a curved transducer, etc., and there is no limitation herein.

[0101] Step S502: Obtain the target ultrasonic power of the acoustic wave signal output by the ultrasonic transducer.

[0102] In some embodiments, the ultrasonic power measuring device is controlled by the control device to acquire the target ultrasonic power of the acoustic wave signal output by the ultrasonic transducer.

[0103] Step S503: Based on the target electrical power and the target ultrasonic power, the target electroacoustic conversion efficiency of the ultrasonic transducer is obtained.

[0104] In some embodiments, after obtaining the target electrical power and target ultrasonic power in step S502, the target electrical power and target ultrasonic power are calculated to obtain the target electroacoustic conversion efficiency of the ultrasonic transducer. The electroacoustic conversion efficiency refers to the efficiency of the ultrasonic transducer in converting electrical energy into acoustic energy (i.e., ultrasonic energy), which can be obtained by calculating the ratio between the target electrical power and the target ultrasonic power.

[0105] Using an ultrasonic excitation source and an ultrasonic power measurement device helps to complete the acquisition of target electrical power and the measurement of target ultrasonic power in a short time, effectively avoiding the acoustic power attenuation phenomenon that is easily caused by large dose output, thereby helping to improve the accuracy of electroacoustic conversion efficiency.

[0106] In one possible implementation, the electroacoustic conversion efficiency measurement method provided in some embodiments of this application may further include the following steps before obtaining the target electrical power of the electrical signal received by the ultrasonic transducer:

[0107] Step 1: Obtain the signal parameter set and the location information set. The signal parameter set includes at least one group of signal parameters, and the location information set includes at least one location information. Each location information corresponds to one group of signal parameters, and the locations corresponding to at least one location information are on the same horizontal line.

[0108] In some embodiments, to more accurately control the testing process and ensure the accuracy and reliability of the ultrasonic transducer electroacoustic conversion efficiency measurement, a set of signal parameters and a set of position information need to be determined before controlling the ultrasonic power excitation source to start outputting the drive signal. For example, the signal parameter set could be a set of parameters with a fixed output frequency and progressively adjusted output voltage. Setting such a set of parameters helps testers explore the effect of different voltages on transducer performance at specific frequencies. Alternatively, the signal parameter set could be a set of parameters with a fixed output voltage and progressively adjusted output frequency. In this way, testers can gradually change the frequency under constant voltage conditions to calculate the electroacoustic conversion efficiency at different frequencies.

[0109] The position information set contains at least one position information, and each position information corresponds to a set of signal parameters. Each position information corresponds to a set of signal parameters in the signal parameter set, meaning that under different signal parameter sets, the ultrasonic transducer is placed in different, but predefined, precise positions. It should be noted that the positions corresponding to at least one position information must be on the same horizontal line. This ensures that regardless of changes in signal parameters, the ultrasonic transducer can vertically output sound wave signals to the ultrasonic power measurement device, eliminating measurement errors caused by positional deviations. Furthermore, by corresponding the position information to a set of signal parameters in the signal parameter set, it is possible to avoid the ultrasonic transducer outputting multiple times from the same position, thus preventing interference with the sound power measurement.

[0110] In some embodiments, the control device can obtain the set of signal parameters and the set of location information input by the tester through an interactive interface.

[0111] Step 2: Output signal parameter set and position information set. The position information set is used by the motion mechanism to control the ultrasonic transducer to move to the position corresponding to each position information based on each position information set. The signal parameter set is used by the ultrasonic excitation source to output an electrical signal to the ultrasonic transducer based on the signal parameter set corresponding to each position information when the motion mechanism reaches the position corresponding to each position information, so as to obtain the target electrical power and the target ultrasonic power corresponding to each signal parameter set.

[0112] In some embodiments, the motion mechanism may be integrated into the operating handle or may be set separately from the operating handle; no limitation is made here.

[0113] In some embodiments, the distance between the position corresponding to at least one location and the ultrasonic power measuring device is the distance between the ultrasonic transducer and its focal point in the vertical direction.

[0114] In some embodiments, the angle between the tangent of the ultrasonic transducer and the horizontal direction is a first angle, which is used to position the output focus of the ultrasonic transducer on the ultrasonic measuring device.

[0115] In some embodiments, the ultrasonic transducer is a sheet transducer or a curved transducer, which is not limited herein.

[0116] In some embodiments, the control device outputs a set of position information to the motion mechanism. Based on each position information in the set, the motion mechanism controls the ultrasonic transducer to move to the position corresponding to each position information. It should be noted that the ultrasonic transducer can be clamped onto the motion mechanism, and the motion mechanism controls the ultrasonic transducer to move by a certain displacement coordinate according to the received position information, thereby moving to the exact position corresponding to each position information.

[0117] The control device outputs a set of signal parameters to the ultrasonic excitation source. The ultrasonic excitation source, based on each group of signal parameters in the set, outputs an electrical signal to the ultrasonic transducer, while simultaneously acquiring the target electrical power received by the transducer. The ultrasonic power measurement device accurately acquires the target ultrasonic power after the ultrasonic transducer receives the signal and outputs a sound wave. The control device analyzes all collected electrical and ultrasonic power data to calculate the electroacoustic conversion efficiency under different locations and signal parameter conditions, thus obtaining more comprehensive and reliable test results.

[0118] By testing at different locations, the problem of ultrasonic power attenuation caused by multiple outputs of the ultrasonic transducer at a single location is avoided, which helps to improve the stability of long-term measurements and the reliability of data.

[0119] In one possible implementation, the electroacoustic conversion efficiency measurement method provided in some embodiments of this application may further include the following steps before acquiring the signal parameter set:

[0120] Step 1: Obtain rotation angle information.

[0121] In some embodiments, the rotation angle information input by the tester can be obtained through a control device.

[0122] Step 2: Send rotation angle information, wherein the rotation angle information is used to enable the rotating mechanism to drive the ultrasonic transducer to rotate based on the rotation angle information, so that the output focus of the ultrasonic transducer is located at the ultrasonic power measuring device.

[0123] In some embodiments, a rotating mechanism may also be provided. This mechanism precisely controls the rotation angle of the ultrasonic transducer, ensuring that its output focus is always aligned with the ultrasonic power measuring device. This prevents the ultrasonic power measuring device from failing to receive ultrasonic waves or receiving only partial ultrasonic waves, thereby helping to eliminate the influence of directional deviation on the acoustic power measurement results. The control device outputs rotation angle information to the rotating mechanism, which then controls the ultrasonic transducer to rotate based on the received rotation angle information, thereby adjusting the transducer's output focus to align with the ultrasonic power measuring device.

[0124] In some embodiments, the rotating mechanism may be integrated into the operating handle or may be set separately from the operating handle; no limitation is made here.

[0125] The rotating mechanism helps ensure that the output focus of the ultrasonic transducer is always aligned with the ultrasonic power measuring device during the test and eliminates the influence of directional deviation on the measurement results, thereby helping to improve the accuracy and consistency of electroacoustic conversion efficiency measurement.

[0126] In one possible implementation, in the electroacoustic conversion efficiency measurement method provided in some embodiments of this application, the tangent of the ultrasonic transducer is parallel to the ultrasonic power measurement device.

[0127] In one possible implementation, the electroacoustic conversion efficiency measurement method provided in some embodiments of this application may further include the following steps after the output signal parameter set and the location information set:

[0128] Step 1: Obtain the current location information of the ultrasonic transducer and the target measurement range of the ultrasonic power measuring device.

[0129] In some embodiments, the coordinate position information of the ultrasonic transducer is recorded by the motion mechanism, and then the control device obtains the current position information of the ultrasonic transducer from the motion mechanism, as well as the target measurement range of the ultrasonic power measuring device.

[0130] Step 2: Based on the current location information and the target measurement range, check whether the ultrasonic power measurement device has been used successfully.

[0131] In some embodiments, the control device can detect whether the ultrasonic power measuring device has been used up based on the current position information of the ultrasonic transducer and the target measurement range.

[0132] Determining whether the ultrasonic power measurement device has been fully utilized helps ensure the absorption target is fully utilized and avoids performance degradation caused by over-testing of local areas, thereby improving the overall efficiency and cost-effectiveness of the test.

[0133] In one possible implementation, in the electroacoustic conversion efficiency measurement method provided in some embodiments of this application, the ultrasonic power measuring device includes an absorption target and an ultrasonic power meter; the absorption target is used to absorb the acoustic wave signal output by the ultrasonic transducer; the ultrasonic power meter obtains the target ultrasonic power based on the target change generated when the absorption target absorbs the acoustic wave signal.

[0134] In some embodiments, the ultrasonic power measuring device includes an absorption target and an ultrasonic power meter. The absorption target is used to absorb the acoustic signal output by the ultrasonic transducer. For example, the absorption target can be divided into regions, each region corresponding to the aforementioned position information. By absorbing the acoustic signal output by the ultrasonic transducer in different regions, the measurement of acoustic power is prevented from being affected by the ultrasonic transducer outputting multiple times at the same position on the absorption target.

[0135] An ultrasonic power meter is used to monitor and quantify the change in a target surface when it absorbs an acoustic signal, and then calculates the target ultrasonic power based on this change. For example, a thermistor, piezoelectric crystal, or force sensor can be used to sense the change in the target surface. The sensor converts the change in the target surface into a measurable electrical signal, and then the ultrasonic power meter uses a predefined algorithm or mathematical model to convert the received electrical signal into the target ultrasonic power.

[0136] It should be noted that the target measurement range of the ultrasonic power measuring device mentioned above can be the area where the absorbing target can be used to absorb sound wave signals.

[0137] By acquiring acoustic signals from different regions of the absorbing target, material property degradation or measurement deviations caused by repeated acoustic absorption in a single region are avoided. Using an ultrasonic power meter helps to monitor and quantify minute changes on the surface of the absorbing target in real time, such as variations in temperature, pressure, or vibration amplitude, thereby improving the accuracy of acoustic power measurements.

[0138] In one possible implementation, in the electroacoustic conversion efficiency measurement method provided in some embodiments of this application, the target electrical power includes at least one sub-electrical power, the target ultrasonic power includes at least one sub-ultrasonic power, and each sub-electrical power corresponds to one sub-ultrasonic power; the target electroacoustic conversion efficiency of the ultrasonic transducer is obtained based on the target electrical power and the target ultrasonic power, including: fitting each sub-electrical power and the corresponding sub-ultrasonic power in the at least one sub-electrical power to obtain a fitting curve; and the target electroacoustic conversion efficiency is obtained based on the fitting curve.

[0139] In some embodiments, the target electrical power may include at least one sub-electrical power, and the target ultrasonic power may include at least one sub-ultrasonic power, with each sub-electrical power corresponding to one sub-ultrasonic power. The control device controls the ultrasonic excitation source to output multiple pulse modulation signals with different parameters (such as frequency and voltage) to drive the ultrasonic transducer to work. At the same time, the electrical power measurement module built into the ultrasonic excitation source collects the corresponding sub-electrical power, and the ultrasonic power measurement device collects the corresponding sub-ultrasonic power to obtain one or more sets of sub-electrical power and sub-ultrasonic power.

[0140] In some embodiments, each sub-power may correspond to a set of signal parameters.

[0141] Then, the control device further performs statistical analysis on the collected multiple sets of sub-electrical power and sub-ultrasonic power data, and uses mathematical models (such as linear regression, polynomial fitting, exponential functions, etc.) to perform fitting, generating one or a set of fitting curves that can describe the trend of electroacoustic conversion efficiency. Finally, the target electroacoustic conversion efficiency is obtained based on the fitting curve. In an optional embodiment, the fitting curve can be directly used as the final test result, and the optimal electrical power to achieve the ultrasonic power target can be determined by reverse lookup using the fitting curve.

[0142] By fitting curves, a more continuous and smooth data representation can be provided, which helps to improve the calculation accuracy of the target electroacoustic conversion efficiency compared to direct calculation based solely on discrete data points.

[0143] In practical applications, the electroacoustic conversion efficiency of ultrasonic transducers is affected by manufacturing processes and material properties, resulting in variations in the output ultrasonic power of different transducers even under the same driving conditions. This inconsistency in power output directly impacts the equipment's effectiveness and therapeutic outcomes, especially when operating the same host system with different transducers (single or integrated within a catheter).

[0144] To ensure that different transducers (which may be conduits including at least one transducer or a single conduit including one transducer) connected to the same host have the same output acoustic power, in one possible implementation, the electroacoustic conversion efficiency measurement method provided in some embodiments of this application, after obtaining the target electroacoustic conversion efficiency, may further include the following steps: determining the target ultrasonic transducer to be used and the expected ultrasonic power of the target ultrasonic transducer; obtaining the target electroacoustic conversion efficiency corresponding to the target ultrasonic transducer; determining the received electrical power of the target ultrasonic transducer based on the expected ultrasonic power and the target electroacoustic conversion efficiency; and outputting target signal parameters based on the received electrical power, wherein the target signal parameters are used by the ultrasonic excitation source to output a target electrical signal, and the power of the target electrical signal is the received electrical power.

[0145] In some embodiments, after measuring the target electroacoustic conversion efficiency, the target electroacoustic conversion efficiency can be stored in a storage unit via a control device. The target ultrasonic transducer to be used and its expected ultrasonic power are determined, and then the target electroacoustic conversion efficiency corresponding to the target ultrasonic transducer is retrieved from the storage unit via the control device. In some embodiments, the storage unit can be disposed on the ultrasonic transducer.

[0146] Using the formula: Received electrical power = Expected ultrasonic power / Target electroacoustic conversion efficiency, the control device calculates the electrical power that the target ultrasonic transducer needs to receive in order to achieve the expected ultrasonic power output. Finally, based on the calculated electrical power and the characteristics of the ultrasonic excitation source, the control device outputs target signal parameters, such as frequency and voltage, to ensure that the actual acoustic power output by the ultrasonic transducer matches the expected acoustic power output.

[0147] Through the above steps, the control device accurately calculates the required received electrical power of the ultrasonic transducer based on its electroacoustic conversion efficiency and the expected ultrasonic power demand. This helps ensure that the electrical signal output from the ultrasonic excitation source accurately matches the transducer's operating requirements, thereby improving the accuracy of the ultrasonic power output. Furthermore, since the electroacoustic conversion efficiency of different ultrasonic transducers may vary due to manufacturing differences, personalized calculation of the received electrical power and adjustment of signal parameters help ensure that all ultrasonic transducers output consistent ultrasonic power when connected to the same host, thus enhancing the performance consistency of the equipment.

[0148] In an alternative embodiment, it can be achieved through, as follows: Figure 6The schematic diagram illustrates the electroacoustic conversion efficiency test, which includes: responding to the electroacoustic conversion efficiency measurement request, moving the ultrasonic transducer to a suitable position on the absorption target of the ultrasonic power meter to avoid incorrect positioning that could lead to inaccurate or unmeasurable acoustic power measurements. After the ultrasonic transducer is moved to the appropriate position on the absorption target, the output focus of the ultrasonic transducer needs to be adjusted so that it is directly facing the absorption target to ensure accurate ultrasonic power measurement. The output signal parameters of the ultrasonic power source are set, and the output electrical signal is used to drive the ultrasonic transducer in the catheter. The signal parameters can be a fixed output frequency with incrementally adjusted output voltage, or a fixed output voltage with incrementally adjusted output frequency. Simultaneously with the output electrical signal, the ultrasonic power source also synchronously samples the electrical power received by the ultrasonic transducer and uploads it to the control unit in real time. The control unit reads the acoustic power value output by the ultrasonic transducer on the absorption target from the ultrasonic power meter via a USB cable. The control unit calculates the electroacoustic conversion efficiency using the read electrical and acoustic power values. The control unit writes the calculated electroacoustic conversion efficiency into memory for easy access by other handles and the main unit.

[0149] It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and although a logical order is shown in the flowchart, in some cases the steps shown or described may be executed in a different order than that shown here.

[0150] This application also provides an electroacoustic conversion efficiency measuring device. It should be noted that the electroacoustic conversion efficiency measuring device of this application can be used to execute the electroacoustic conversion efficiency measuring method provided in this application. The electroacoustic conversion efficiency measuring device provided in this application is described below.

[0151] According to an embodiment of this application, an apparatus for implementing the above-described electroacoustic conversion efficiency measurement method is also provided, such as... Figure 7 As shown, the device includes: a first acquisition unit 701, a second acquisition unit 702, and an electroacoustic conversion efficiency determination unit 703.

[0152] The first acquisition unit 701 is used to acquire the target electrical power of the electrical signal received by the ultrasonic transducer.

[0153] The second acquisition unit 702 is used to acquire the target ultrasonic power of the acoustic signal output by the ultrasonic transducer.

[0154] The electroacoustic conversion efficiency determination unit 703 is used to obtain the target electroacoustic conversion efficiency of the ultrasonic transducer based on the target electrical power and the target ultrasonic power.

[0155] The electroacoustic conversion efficiency measuring device provided in this application embodiment acquires the target electrical power of the electrical signal received by the ultrasonic transducer through a first acquisition unit 701; acquires the target ultrasonic power of the sound wave signal output by the ultrasonic transducer through a second acquisition unit 702; and obtains the target electroacoustic conversion efficiency of the ultrasonic transducer based on the target electrical power and the target ultrasonic power through an electroacoustic conversion efficiency determination unit 703. This solves the technical problem in related technologies where the ultrasonic transducer needs to output ultrasonic power for a sufficiently long time before the oscilloscope can measure the current and voltage signals to calculate the electrical power, resulting in a large output dose from the transducer. A large output dose easily leads to sound power attenuation, and the attenuation of sound power leads to inaccurate electroacoustic conversion efficiency.

[0156] Optionally, in the electroacoustic conversion efficiency measuring device provided in the embodiments of this application, the device further includes: a third acquisition unit, used to acquire a signal parameter set and a position information set before acquiring the target electrical power of the electrical signal received by the ultrasonic transducer, wherein the signal parameter set includes at least one group of signal parameters, the position information set includes at least one position information, each position information corresponds to one group of signal parameters, and the positions corresponding to at least one position information are located on the same horizontal line; a first output unit, used to output the signal parameter set and the position information set, wherein the position information set is used by the motion mechanism to control the ultrasonic transducer to move to the position corresponding to each position information based on each position information in the position information set; the signal parameter set is used by the ultrasonic excitation source to output an electrical signal to the ultrasonic transducer based on the signal parameter group corresponding to each position information when the motion mechanism reaches the position corresponding to each position information, so as to obtain the target electrical power corresponding to each group of signal parameters and the target ultrasonic power corresponding to each group of signal parameters.

[0157] Optionally, in the electroacoustic conversion efficiency measuring device provided in the embodiments of this application, the device further includes: a fourth acquisition unit, used to acquire rotation angle information before acquiring the signal parameter set; and a transmission unit, used to transmit the rotation angle information, wherein the rotation angle information is used to cause the rotation mechanism to drive the ultrasonic transducer to rotate based on the rotation angle information, so that the output focus of the ultrasonic transducer is located at the ultrasonic power measuring device.

[0158] Optionally, in the electroacoustic conversion efficiency measuring device provided in the embodiments of this application, the tangent of the ultrasonic transducer is parallel to the ultrasonic power measuring device.

[0159] Optionally, in the electroacoustic conversion efficiency measuring device provided in the embodiments of this application, the device further includes: a fifth acquisition unit, used to acquire the current position information of the ultrasonic transducer and the target measurement range of the ultrasonic power measuring device after outputting the signal parameter set and the position information set; and a detection unit, used to detect whether the ultrasonic power measuring device has been used up based on the current position information and the target measurement range.

[0160] Optionally, the ultrasonic power measuring device includes an absorbing target and an ultrasonic power meter; the absorbing target is used to absorb the acoustic signal output by the ultrasonic transducer; the ultrasonic power meter obtains the target ultrasonic power based on the target change caused by the absorbing target absorbing the acoustic signal.

[0161] Optionally, in the electroacoustic conversion efficiency measuring device provided in the embodiments of this application, the target electrical power includes at least one sub-electrical power, the target ultrasonic power includes at least one sub-ultrasonic power, and each sub-electrical power corresponds to one sub-ultrasonic power; the electroacoustic conversion efficiency determining unit includes: a fitting module, used to fit according to each sub-electrical power in the at least one sub-electrical power and the sub-ultrasonic power corresponding to each sub-electrical power to obtain a fitting curve; and a calculation module, used to obtain the target electroacoustic conversion efficiency according to the fitting curve.

[0162] Optionally, in the electroacoustic conversion efficiency measuring device provided in the embodiments of this application, the device further includes: a first determining unit, used to determine the target ultrasonic transducer to be used and the expected ultrasonic power of the target ultrasonic transducer after obtaining the target electroacoustic conversion efficiency; a fifth acquiring unit, used to acquire the target electroacoustic conversion efficiency corresponding to the target ultrasonic transducer; a second determining unit, used to determine the received electrical power of the target ultrasonic transducer based on the expected ultrasonic power and the target electroacoustic conversion efficiency; and a second output unit, used to output target signal parameters based on the received electrical power, wherein the target signal parameters are used for the ultrasonic excitation source to output a target electrical signal, and the power of the target electrical signal is the received electrical power.

[0163] It should be noted that the first acquisition unit 701, the second acquisition unit 702, and the electroacoustic conversion efficiency determination unit 703 described above correspond to steps S501 to S503 in the electroacoustic conversion efficiency measurement method. The instances and application scenarios implemented by these units and their corresponding steps are the same, but are not limited to the content disclosed in the above embodiments. It should also be noted that the above modules or units can be hardware or software components stored in memory and processed by one or more processors. These modules can also be part of a device that runs in the electroacoustic conversion efficiency testing system provided in the embodiments.

[0164] Some embodiments of this application also provide a computer-readable storage medium. Optionally, in this embodiment, the storage medium can be used to store the program code executed by the electroacoustic conversion efficiency measurement method provided in Embodiment 1.

[0165] Optionally, in this embodiment, the storage medium may be located in any computer terminal in a group of computer terminals in a computer network, or in any mobile terminal in a group of mobile terminals.

[0166] This application also provides a computer program product, which, when executed on a data processing device, is suitable for performing the steps of an electroacoustic conversion efficiency measurement method.

[0167] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0168] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0169] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.

[0170] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0171] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0172] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as a USB flash drive, read-only memory (ROM), random access memory (RAM), portable hard drive, magnetic disk, or optical disk.

[0173] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A system for measuring electroacoustic conversion efficiency, characterized in that, include: The ultrasonic transducer, ultrasonic power measuring device, ultrasonic excitation source, and control device are included. The ultrasonic transducer is used to convert the received electrical signal into an acoustic signal. The ultrasonic excitation source is used to acquire the target electrical power of the electrical signal received by the ultrasonic transducer. The ultrasonic power measuring device is used to collect the target ultrasonic power of the ultrasonic transducer output sound wave signal; The control device is used to obtain the target electroacoustic conversion efficiency of the ultrasonic transducer based on the target electrical power and the target ultrasonic power.

2. The measurement system according to claim 1, characterized in that, The system also includes a motion mechanism; before acquiring the target electrical power of the electrical signal received by the ultrasonic transducer, the control device is also used to acquire a signal parameter set and a position information set, the signal parameter set including at least one group of signal parameters, the position information set including at least one position information, each position information corresponding to one group of signal parameters, and the positions corresponding to at least one position information being located on the same horizontal line; The control device is also used to output the signal parameter set and the position information set; The motion mechanism is used to receive the set of position information and, based on each of the position information in the set of position information, control the ultrasonic transducer to move to the position corresponding to each of the position information. The ultrasonic excitation source is also used to receive the signal parameter set, and when the motion mechanism reaches the position corresponding to each of the position information, output an electrical signal to the ultrasonic transducer based on the signal parameter set corresponding to each of the position information; The ultrasonic excitation source is also used to collect the target electrical power of the electrical signal corresponding to each signal parameter group received by the ultrasonic transducer. The ultrasonic power measuring device is also used to collect the target ultrasonic power of the sound wave signal output by the ultrasonic transducer after the ultrasonic transducer receives the electrical signal corresponding to each signal parameter group.

3. The measurement system according to claim 1, characterized in that, The system also includes a rotating mechanism: The control device is also used to output rotation angle information; The rotating mechanism is used to receive the rotation angle information and drive the ultrasonic transducer to rotate based on the rotation angle information, so that the output focus of the ultrasonic transducer is located at the ultrasonic power measuring device.

4. The measurement system according to claim 3, characterized in that, The tangent of the ultrasonic transducer is parallel to the ultrasonic power measuring device.

5. The measurement system according to claim 1, characterized in that, The ultrasonic power measurement device includes an absorbing target and an ultrasonic power meter: for acquiring the target acoustic power of the acoustic wave signal output by the ultrasonic transducer. The absorption target is used to absorb the acoustic signal output by the ultrasonic transducer. The ultrasonic power meter is used to obtain the target ultrasonic power based on the target change caused by the absorption target absorbing the acoustic signal.

6. The measurement system according to claim 2, characterized in that, The control device is also used to acquire the current position information of the ultrasonic transducer and the target measurement range of the ultrasonic power measuring device, and to detect whether the ultrasonic power measuring device has been used up based on the current position information and the target measurement range.

7. The measurement system according to claim 1, characterized in that, The ultrasonic excitation source includes an electrical power measurement module; the electrical power measurement module is used to acquire the target electrical power of the electrical signal received by the ultrasonic transducer.

8. The electroacoustic conversion efficiency measurement system according to claim 1, characterized in that, The system also includes a storage unit: The storage unit is used to store the target electroacoustic conversion efficiency, which is used by the target device to control the electrical signal output to the ultrasonic transducer based on the target electroacoustic conversion efficiency and the expected ultrasonic power.

9. The electroacoustic conversion efficiency measurement system according to any one of claims 1 to 8, characterized in that, The target electrical power includes at least one sub-electrical power, and the target ultrasonic power includes at least one sub-ultrasonic power, with each sub-electrical power corresponding to one sub-ultrasonic power; the control device is further configured to fit each of the at least one sub-electrical power and the sub-ultrasonic power corresponding to each sub-electrical power to obtain a fitting curve, and to obtain the target electroacoustic conversion efficiency based on the fitting curve.

10. A method for measuring electroacoustic conversion efficiency, characterized in that, include: Obtain the target electrical power of the electrical signal received by the ultrasonic transducer; Obtain the target ultrasonic power of the acoustic signal output by the ultrasonic transducer; The target electroacoustic conversion efficiency of the ultrasonic transducer is obtained based on the target electrical power and the target ultrasonic power.

11. The method according to claim 10, characterized in that, Before acquiring the target electrical power of the electrical signal received by the ultrasonic transducer, the method further includes: Obtain rotation angle information; The rotation angle information is sent, wherein the rotation angle information is used to cause the rotating mechanism to drive the ultrasonic transducer to rotate based on the rotation angle information, so that the output focus of the ultrasonic transducer is located at the ultrasonic power measuring device.

12. The method according to claim 11, characterized in that, The tangent of the ultrasonic transducer is parallel to the ultrasonic power measuring device.

13. The method according to claim 10, characterized in that, Before acquiring the target electrical power of the electrical signal received by the ultrasonic transducer, the method further includes: Acquire a signal parameter set and a location information set, wherein the signal parameter set includes at least one group of signal parameters, and the location information set includes at least one location information, each location information corresponds to one group of signal parameters, and the locations corresponding to at least one location information are located on the same horizontal line; The signal parameter set and position information set are output, wherein the position information set is used by the motion mechanism to control the ultrasonic transducer to move to the position corresponding to each position information based on each position information in the position information set; the signal parameter set is used by the ultrasonic excitation source to output an electrical signal to the ultrasonic transducer based on the signal parameter set corresponding to each position information when the motion mechanism reaches the position corresponding to each position information, so as to obtain the target electrical power and the target ultrasonic power corresponding to each signal parameter set.

14. The method according to claim 13, characterized in that, After outputting the signal parameter set and the location information set, the method further includes: Obtain the current position information of the ultrasonic transducer and the target measurement range of the ultrasonic power measuring device; Based on the current location information and the target measurement range, it is determined whether the ultrasonic power measurement device has been used successfully.

15. The method according to any one of claims 11 to 14, characterized in that, The ultrasonic power measuring device includes an absorption target and an ultrasonic power meter; the absorption target is used to absorb the acoustic signal output by the ultrasonic transducer; the ultrasonic power meter obtains the target ultrasonic power based on the target change caused by the absorption target absorbing the acoustic signal.

16. The method according to any one of claims 11 to 14, characterized in that, The target electrical power includes at least one sub-electrical power, and the target ultrasonic power includes at least one sub-ultrasonic power, with each sub-electrical power corresponding to one sub-ultrasonic power; based on the target electrical power and the target ultrasonic power, the target electroacoustic conversion efficiency of the ultrasonic transducer is obtained, including: A fitting curve is obtained by fitting each of the at least one sub-electric power and the corresponding sub-ultrasonic power of each sub-electric power; The target electroacoustic conversion efficiency is obtained based on the fitted curve.

17. The method according to claim 10, characterized in that, After obtaining the target electroacoustic conversion efficiency, the method further includes: Determine the target ultrasonic transducer to be used and the expected ultrasonic power of the target ultrasonic transducer; Obtain the target electroacoustic conversion efficiency corresponding to the target ultrasonic transducer; Based on the expected ultrasonic power and the target electroacoustic conversion efficiency, the received electrical power of the target ultrasonic transducer is determined; Based on the received electrical power, target signal parameters are output. These target signal parameters are used by the ultrasonic excitation source to output a target electrical signal, and the power of the target electrical signal is the received electrical power.

18. A device for measuring electroacoustic conversion efficiency, characterized in that, include: The first acquisition unit is used to acquire the target electrical power of the electrical signal received by the ultrasonic transducer; The second acquisition unit is used to acquire the target ultrasonic power of the acoustic signal output by the ultrasonic transducer. An electroacoustic conversion efficiency determination unit is used to obtain the target electroacoustic conversion efficiency of the ultrasonic transducer based on the target electrical power and the target ultrasonic power.

19. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored executable program, wherein, when the executable program is executed, it controls the device on which the computer-readable storage medium is located to perform the method for measuring electroacoustic conversion efficiency as described in any one of claims 10 to 17.

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