System, method and equipment for measuring flow velocity of fluid in pipeline and medium

Abstract

The invention relates to the technical field of ultrasonic transducers, particularly provides a system, method and equipment for measuring the flow velocity of fluid in a pipeline and a medium, and aims to solve the problem of low measurement precision of the flow velocity of the fluid in the pipeline. In order to achieve the purpose, the system for measuring the flow velocity of the fluid in the pipeline comprises an ultrasonic flowmeter and the pipeline, the ultrasonic flowmeter comprises a plurality of ultrasonic transducers, each ultrasonic transducer comprises a circuit printed board, a transduction chip arranged on the circuit printed board, a transmitting array and a receiving array, and the transmitting array and the receiving array are arranged on the transduction chip. The first ultrasonic transducer and the second ultrasonic transducer are installed on the two sides of the pipeline respectively, and a target included angle is formed between the connecting line of the first ultrasonic transducer and the second ultrasonic transducer and the flow direction of fluid in the pipeline. According to the invention, the use of a transmitting / receiving change-over switch is avoided, so that a signal processing link is simple, the complexity of the system is reduced, the deployment cost of the system is reduced, and the measurement precision of the fluid flow velocity is improved.

Description

Technical Field

[0001] The present application relates to the technical field of ultrasonic transducers, and in particular to a system, method, device and medium for measuring the flow velocity of a fluid in a pipeline. Background Art

[0002] Traditional transit-time ultrasonic flowmeters typically use a pair of piezoelectric ultrasonic transducers. When measuring and calibrating flow velocity within a pipeline, these transducers act as both transmitter and receiver, transmitting and receiving ultrasonic waves. The average velocity and volume flow of the measured medium are calculated based on the propagation time difference between the ultrasonic wave traveling in the same and opposite directions relative to the fluid in the pipeline, combined with pipeline parameters.

[0003] However, the existing bulk piezoelectric ultrasonic transducer has the same structure when transmitting and receiving signals, and a transmit / receive switch (T / R switch) needs to be connected to the back-end circuit. During the signal transmission phase, the transmit / receive switch (T / R switch) switches the switch state of the piezoelectric micromachined ultrasonic transducer to the transmit channel, and during the signal reception phase, the switch state of the piezoelectric micromachined ultrasonic transducer is switched to the receive channel, thereby realizing the signal transmission function and the signal reception function. However, this process of signal transmission and reception not only makes the signal processing link complex and the equipment deployment cost high, but also the directivity and omnidirectionality of the bulk piezoelectric ultrasonic transducer are two mutually restrictive characteristics, and it is impossible to achieve optimal performance simultaneously in the same structure. That is, if the performance of the piezoelectric micromachined ultrasonic transducer's transmission signal is good, then the corresponding performance of its reception signal is poor; if the performance of the piezoelectric micromachined ultrasonic transducer's reception signal is good, then the corresponding performance of its transmission signal is poor. Therefore, when measuring the flow rate of the fluid in the pipeline, the signal quality will be affected, resulting in signal distortion or amplitude reduction, thereby affecting the measurement accuracy. Summary of the Invention

[0004] In response to the above-mentioned deficiencies in the prior art, the present application proposes a system, method, device and medium for measuring the flow rate of a fluid in a pipeline.

[0005] In a first aspect, an embodiment of the present application provides a system for measuring the flow rate of a fluid in a pipeline, comprising an ultrasonic flowmeter and a pipeline, the ultrasonic flowmeter comprising multiple ultrasonic transducers, each of the ultrasonic transducers comprising a circuit printed board, a transducer chip arranged on the circuit printed board, and a transmitting array and a receiving array arranged on the transducer chip; a first ultrasonic transducer and a second ultrasonic transducer are respectively installed on both sides of the pipeline, the first ultrasonic transducer is at least one of the multiple ultrasonic transducers, and the second ultrasonic transducer is at least one of the multiple ultrasonic transducers other than the first ultrasonic transducer; a line connecting the first ultrasonic transducer and the second ultrasonic transducer forms a target angle with the flow direction of the fluid in the pipeline.

[0006] In some embodiments of the present application, the transmitting array and the receiving array are laid out horizontally or vertically on the transducer chip.

[0007] In some embodiments of the present application, the transducer chip includes a transmitting transducer chip and a receiving transducer chip; the transmitting array is arranged on the transmitting transducer chip, and the receiving array is arranged on the receiving transducer chip; the transmitting transducer chip and the receiving transducer chip are laid flat left and right or top and bottom on the circuit printed board.

[0008] In some embodiments of the present application, the transmitting array includes multiple transmitting units, each of the transmitting units includes multiple transmitting piezoelectric elements, and the multiple transmitting piezoelectric elements form a preset shape, and each of the transmitting units is flat on the transducer chip; the center position of each of the transmitting units respectively contains at least one receiving piezoelectric element of the receiving array.

[0009] In some embodiments of the present application, the transmitting array includes multiple transmitting piezoelectric elements, each of which has the same size, and the first array element spacing between each of the transmitting piezoelectric elements is the same; the receiving array includes multiple receiving piezoelectric elements, each of which has the same size, and the second array element spacing between each of the receiving piezoelectric elements is the same; the size of each transmitting piezoelectric element is different from the size of each receiving piezoelectric element.

[0010] In some embodiments of the present application, the target angle is any angle in the range of 0°-90°.

[0011] In a second aspect, an embodiment of the present application provides a method for measuring the flow rate of a fluid in a pipeline, the measurement method adopts the measurement system for the flow rate of a fluid in a pipeline described in the first aspect for measurement, and the measurement method includes: obtaining a first straight-line distance between the first ultrasonic transducer and the second ultrasonic transducer, the target angle and the ultrasonic velocity of the fluid to be measured; obtaining the downstream propagation time of the ultrasonic wave along the flow direction and through the pipeline, and obtaining the upstream propagation time of the ultrasonic wave along the direction opposite to the flow direction and through the pipeline; calculating the time difference between the downstream transmission time and the upstream transmission time; and calculating the flow rate of the fluid to be measured in the pipeline based on the first straight-line distance, the ultrasonic velocity, the target angle and the time difference.

[0012] In some embodiments of the present application, calculating the flow velocity of the fluid to be measured in the pipeline based on the first straight-line distance, the ultrasonic velocity, the target angle, and the time difference includes:

[0013] Based on the first straight-line distance and the target angle, a second straight-line distance is calculated, where the second straight-line distance represents the straight-line distance of a side opposite to the target angle. Based on the second straight-line distance, the ultrasonic velocity, the target angle, and the time difference, the flow velocity of the fluid to be measured in the pipeline is calculated using the following formula:

[0014]

[0015] Wherein, v represents the flow velocity of the fluid to be measured in the pipeline, c represents the ultrasonic velocity, Δt represents the time difference, and D represents the second straight-line distance. represents the target angle.

[0016] In a third aspect, an embodiment of the present application provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the method described in the first aspect above is implemented.

[0017] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method described in the first aspect above is implemented.

[0018] The technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0019] The system for measuring the flow rate of a fluid in a pipeline in an embodiment of the present application includes: an ultrasonic flowmeter and a pipeline, the ultrasonic flowmeter includes multiple ultrasonic transducers, each ultrasonic transducer includes a circuit printed board, a transducer chip arranged on the circuit printed board, and a transmitting array and a receiving array arranged on the transducer chip, the first ultrasonic transducer and the second ultrasonic transducer are respectively installed on both sides of the pipeline, and the connection line between the first ultrasonic transducer and the second ultrasonic transducer forms a target angle with the flow direction of the fluid in the pipeline, avoiding the use of a transmitting / receiving switch, making the signal processing link simple, reducing the complexity of the system, reducing the system deployment cost, and improving the measurement accuracy of the fluid flow rate.

[0020] Additional aspects and advantages of the present application will be given in part in the description below and in part will become apparent from the description below or learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. The same reference symbols are used throughout the drawings to represent the same components. In the drawings:

[0022] Figure 1 A schematic diagram of the structure of a system for measuring the flow rate of a fluid in a pipeline provided by an embodiment of the present application is shown;

[0023] Figure 2 A schematic structural diagram of an ultrasonic transducer provided in an embodiment of the present application is shown;

[0024] Figure 3 A schematic structural diagram of another ultrasonic transducer provided in an embodiment of the present application is shown;

[0025] Figure 4 A schematic structural diagram of another ultrasonic transducer provided in an embodiment of the present application is shown;

[0026] Figure 5 A schematic flow chart of a method for measuring the flow velocity of a fluid in a pipeline provided by an embodiment of the present application is shown;

[0027] Figure 6 A schematic structural diagram of a device for measuring the flow rate of a fluid in a pipeline provided by an embodiment of the present application is shown;

[0028] Figure 7 A schematic structural diagram of an electronic device provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0029] The following describes exemplary embodiments of the present application in more detail with reference to the accompanying drawings. Although exemplary embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. Instead, these embodiments are provided to enable a more thorough understanding of the present application and to fully convey the scope of the present application to those skilled in the art.

[0030] Ultrasonic flowmeters are widely used in fields such as gas trading and metering, semiconductors, pharmaceuticals, new energy vehicles, and aerospace due to their inherent advantages, such as non-invasiveness, strong adaptability to the measured medium and pipeline environment, and ease of maintenance. Traditional time-of-flight ultrasonic flowmeters typically use a pair of piezoelectric ultrasonic transducers. When measuring and calibrating flow velocity within a pipeline, the ultrasonic transducer pair acts as a transmitter and receiver, transmitting and receiving ultrasonic waves. The average flow velocity and volume flow of the measured medium are calculated by combining the propagation time difference between the ultrasonic wave propagating in the same and opposite directions as the fluid in the pipeline, and the pipeline parameters.

[0031] However, the existing bulk piezoelectric ultrasonic transducer has the same structure when transmitting and receiving signals, and a transmit / receive switch (T / R switch) needs to be connected to the back-end circuit. During the signal transmission phase, the transmit / receive switch (T / R switch) switches the switch state of the piezoelectric micromachined ultrasonic transducer to the transmit channel, and during the signal reception phase, the switch state of the piezoelectric micromachined ultrasonic transducer is switched to the receive channel, thereby realizing the signal transmission function and the signal reception function. However, this process of signal transmission and reception not only makes the signal processing link complex and the equipment deployment cost high, but also the directivity and omnidirectionality of the bulk piezoelectric ultrasonic transducer are two mutually restrictive characteristics, and it is impossible to achieve optimal performance simultaneously in the same structure. That is, if the performance of the piezoelectric micromachined ultrasonic transducer's transmission signal is good, then the corresponding performance of its reception signal is poor; if the performance of the piezoelectric micromachined ultrasonic transducer's reception signal is good, then the corresponding performance of its transmission signal is poor. Therefore, when measuring the flow rate of the fluid in the pipeline, the signal quality will be affected, resulting in signal distortion or amplitude reduction, thereby affecting the measurement accuracy.

[0032] Based on this, an embodiment of the present application provides a system for measuring the flow rate of a fluid in a pipeline. The solution of the embodiment of the present application will be described in detail below with reference to the accompanying drawings.

[0033] See also Figure 1A schematic structural diagram of a system for measuring the flow rate of a fluid in a pipeline is shown. The system specifically includes an ultrasonic flowmeter and a pipeline. The ultrasonic flowmeter includes multiple ultrasonic transducers, each ultrasonic transducer includes a circuit printed board (not shown in the figure), a transducer chip (not shown in the figure) arranged on the circuit printed board, and a transmitting array and a receiving array arranged on the transducer chip. The first ultrasonic transducer and the second ultrasonic transducer are respectively installed on both sides of the pipeline, wherein the first ultrasonic transducer is at least one of the multiple ultrasonic transducers, and the second ultrasonic transducer is at least one of the multiple ultrasonic transducers other than the first ultrasonic transducer. Moreover, the line connecting the first ultrasonic transducer and the second ultrasonic transducer forms a target angle V with the flow direction V of the fluid in the pipeline.

[0034] In the embodiment of the present application, there can be multiple ultrasonic transducers, and the structures of the multiple ultrasonic transducers are the same, and they can be installed in pairs on both sides of the pipeline. This application does not make specific restrictions.

[0035] The target angle is any angle within the range of 0°-90°.

[0036] See also Figure 2 Based on the above embodiments of the present application, in some modified embodiments, such as Figure 2 As shown in (a), the transmitting array and the receiving array can be laid out on the transducer chip; or they can be as follows Figure 2 As shown in (b), the transmitting array and the receiving array can be laid flat on the transducer chip.

[0037] By tiling the transmitting array and the receiving array left and right or up and down on the transducer chip, a more uniform sound field distribution can be provided, reducing the measurement error caused by concentrated transmission or reception, thereby improving the accuracy of flow velocity measurement; furthermore, the left-right or up-down tiling array design enables the transmitted and received sound waves to more effectively cover the fluid flow area in the pipeline, ensuring that the sound waves will not be affected by uneven flow when propagating in the fluid; furthermore, the left-right or up-down tiling design can increase the effective area of the transmitting array and the receiving array, thereby enhancing the signal strength, improving the signal-to-noise ratio, and reducing the interference of background noise on the measurement results; furthermore, the left-right or up-down tiling structure can better adapt to Various flow field changes, especially when the fluid velocity changes greatly and the flow state in the pipeline is complex, can effectively capture the changing trend of the flow velocity; the left-right or up-down flat design makes the layout and installation of the ultrasonic transducer simpler, convenient for fixing and adjusting on the pipeline, and easier to repair and replace during maintenance; in addition, the left-right or up-down flat arrangement can achieve multi-point measurement within a certain range, making the flow velocity measurement range wider and adapting to the needs under different flow velocity conditions; in addition, the left-right or up-down flat design makes the ultrasonic flowmeter suitable for pipelines of different diameters and types, especially in applications requiring a compact design, which can effectively save space.

[0038] See also Figure 3 FIG1 is a schematic diagram of another structure of an ultrasonic transducer. Based on the above embodiments of the present application, in some modified embodiments, the transducer chip includes a transmitting transducer chip and a receiving transducer chip, the transmitting array is arranged on the transmitting transducer chip, and the receiving array is arranged on the receiving transducer chip. The transmitting transducer chip and the receiving transducer chip can be laid flat on the circuit printed board. Figure 3 As shown in (a), the transmitting transducer chip and the receiving transducer chip can also be laid flat on the circuit printed board, as shown in FIG. Figure 3 (b) shown.

[0039] By arranging the transmitting array on the transmitting transducer chip and the receiving array on the receiving transducer chip, the transmitting function and the receiving function can be separated on different transducer chips, effectively isolating the transmitting and receiving signals. Since the transmitting and receiving arrays are on different chips, the influence of electromagnetic interference and other external noise on the measurement results can be effectively reduced, which is especially advantageous in complex environments and can significantly improve the stability and accuracy of the measurement. Furthermore, the transmitting transducer chip and the receiving transducer chip can be specially designed and optimized according to their respective functions. The transmitting chip can be improved for the emission characteristics of the sound waves, and the receiving chip can optimize its sensitivity and receiving characteristics, thereby improving the overall flow rate measurement performance. Moreover, by arranging the transmitting array on the transmitting transducer chip and the receiving array on the receiving transducer chip, the transmitting function and the receiving function can be separated on different transducer chips, effectively isolating the transmitting and receiving signals. The design of laying the transducer chip and the receiving transducer chip flat on the circuit printed circuit board left and right or up and down can flexibly adapt to different installation environments and space requirements, so that the ultrasonic flowmeter can achieve good results under different pipe diameters and fluid characteristics, providing more design options; in addition, the separate design of arranging the transmitting array on the transmitting transducer chip and the receiving array on the receiving transducer chip allows each transducer chip to be independently tested and adjusted during the production and assembly process, which can more conveniently carry out quality control and optimize the production process, thereby improving production efficiency; moreover, the separate design can also better manage the heat of each chip, avoiding the reduction of measurement accuracy due to temperature increase, especially in high-temperature fluid applications.

[0040] See also Figure 4 A schematic diagram of the structure of another ultrasonic transducer is shown. Based on the above embodiments of the present application, in some modified embodiments, the transmitting array includes multiple transmitting units, each transmitting unit includes multiple transmitting piezoelectric elements, and the multiple transmitting piezoelectric elements are arranged in a preset shape. Each transmitting unit is laid flat on the transducer chip, and the center position of each transmitting unit respectively contains at least one receiving piezoelectric element of the receiving array.

[0041] In the embodiment of the present application, the preset shape may include any one of a rectangle, a square, a circle, a ring, and a hexagon, which is not specifically limited in the embodiment of the present application.

[0042] By arranging the multiple transmitting piezoelectric elements of the transmitting unit into a preset shape, a stronger sound wave transmitting capability can be formed, thereby improving the propagation effect of the sound wave in the fluid, enhancing the signal strength, and improving the accuracy of the fluid flow rate measurement. Moreover, the design into a specific preset shape can also optimize the emission directionality of the sound wave, making the sound wave more directional in the target fluid, further improving the accuracy of the fluid flow rate measurement; in addition, the center position of the transmitting unit is equipped with a receiving piezoelectric element, so that while transmitting the sound wave, the corresponding echo signal can be captured in time. This design can realize transmission and reception at the same position, reduce the loss during signal transmission, improve the receiving sensitivity, realize multi-channel signal processing, capture richer fluid dynamic information, and significantly improve the accuracy and reliability of flow rate measurement.

[0043] Based on the above embodiments, in some modified embodiments, the transmitting array includes multiple transmitting piezoelectric elements, each transmitting piezoelectric element has the same size, and the first array element spacing between each transmitting piezoelectric element is the same; the receiving array includes multiple receiving piezoelectric elements, each receiving piezoelectric element has the same size, and the second array element spacing between each receiving piezoelectric element is the same, and the size of each transmitting piezoelectric element is different from the size of each receiving piezoelectric element.

[0044] In an embodiment of the present application, the size of the transmitting piezoelectric element and the first array element spacing can be determined using finite element simulation technology based on a preset sound pressure; the size of the receiving piezoelectric element and the second array element spacing can be determined using finite element simulation technology based on a preset receiving sensitivity.

[0045] In addition, the size of each transmitting piezoelectric element is different from the size of each receiving piezoelectric element, so that the resonant frequency generated by the transmitting array is the same as the resonant frequency generated by the receiving array.

[0046] In the embodiment of the present application, by ensuring that the resonant frequencies of the transmitting array and the receiving array are the same, the received echo signals have good consistency when the sound waves are transmitted, which can significantly improve the stability and accuracy of the measurement results. Moreover, the same resonant frequency makes the propagation of sound waves in the fluid more efficient, reduces the loss of signals during transmission, and thus improves the signal strength of the overall measurement system; in addition, the consistency of the resonant frequencies of the transmitting and receiving arrays can effectively avoid signal attenuation caused by frequency mismatch, reduce the measurement error caused by frequency mismatch, and enable the system to maintain good performance under various fluid conditions. It can also form a uniform sound field distribution in the pipeline, improve the propagation effect of sound waves, and thus improve the accuracy of fluid flow rate measurement; furthermore, at the same resonant frequency, the ultrasonic transducer will be less sensitive to temperature changes and frequency drift, which enables the system to maintain higher measurement accuracy and stability in actual applications.

[0047] The system for measuring the flow rate of a fluid in a pipeline in an embodiment of the present application includes: an ultrasonic flowmeter and a pipeline, the ultrasonic flowmeter includes multiple ultrasonic transducers, each ultrasonic transducer includes a circuit printed board, a transducer chip arranged on the circuit printed board, and a transmitting array and a receiving array arranged on the transducer chip, the first ultrasonic transducer and the second ultrasonic transducer are respectively installed on both sides of the pipeline, and the connection line between the first ultrasonic transducer and the second ultrasonic transducer forms a target angle with the flow direction of the fluid in the pipeline, avoiding the use of a transmitting / receiving switch, making the signal processing link simple, reducing the complexity of the system, reducing the system deployment cost, and improving the measurement accuracy of the fluid flow rate.

[0048] See also Figure 5 The present application also provides a method for measuring the flow rate of a fluid in a pipeline. The method uses the system for measuring the flow rate of a fluid in a pipeline described in the above embodiment to perform measurement. The method includes the following steps:

[0049] Step 101: Acquire a first straight-line distance between a first ultrasonic transducer and a second ultrasonic transducer, a target angle, and an ultrasonic velocity of a fluid to be measured.

[0050] Step 102: Obtain the downstream propagation time of the ultrasonic wave transmitted along the flow direction and passing through the pipeline, and obtain the upstream propagation time of the ultrasonic wave transmitted along the direction opposite to the flow direction and passing through the pipeline.

[0051] Step 103: Calculate the time difference between the downstream transmission time and the upstream transmission time.

[0052] Failure to comply with 104: Calculate the flow velocity of the fluid to be measured in the pipeline based on the first straight-line distance, ultrasonic velocity, target angle, and time difference.

[0053] Based on the embodiments of the present application, in some modified implementations, the flow velocity of the fluid to be measured in the pipeline is calculated based on the first straight-line distance, the ultrasonic velocity, the target angle, and the time difference. Specifically, the calculation may include: calculating a second straight-line distance based on the first straight-line distance and the target angle, where the second straight-line distance represents the straight-line distance of the side opposite to the target angle; and calculating the flow velocity of the fluid to be measured in the pipeline using the following formula based on the second straight-line distance, the ultrasonic velocity, the target angle, and the time difference:

[0054]

[0055] Where v represents the flow velocity of the fluid to be measured in the pipeline, c represents the ultrasonic velocity, Δt represents the time difference, and D represents the second straight-line distance. Indicates the target angle.

[0056] The method for measuring the flow rate of fluid in a pipeline provided in the embodiment of the present application and the system for measuring the flow rate of fluid in a pipeline provided in the above embodiment are based on the same inventive concept and have the same beneficial effects as the methods adopted, operated or implemented therein.

[0057] See also Figure 6 The present application also provides a device for measuring the flow rate of a fluid in a pipeline. The device is used to perform the method for measuring the flow rate of a fluid in a pipeline described in the above embodiment. The device includes:

[0058] The first acquisition module 201 is configured to acquire a first straight-line distance between the first ultrasonic transducer and the second ultrasonic transducer, the target angle, and an ultrasonic velocity of the fluid to be measured.

[0059] A second acquisition module 202 is configured to acquire a downstream propagation time of the ultrasonic wave transmitted along the flow direction and passing through the pipe, and acquire an upstream propagation time of the ultrasonic wave transmitted along a direction opposite to the flow direction and passing through the pipe;

[0060] A first calculation module 203 is configured to calculate a time difference between the downstream transmission time and the upstream transmission time;

[0061] The second calculation module 204 is configured to calculate the flow velocity of the fluid to be measured in the pipeline based on the first straight-line distance, the ultrasonic velocity, the target angle, and the time difference.

[0062] The device for measuring the flow rate of fluid in a pipeline provided in an embodiment of the present application and the method for measuring the flow rate of fluid in a pipeline provided in the above embodiment are based on the same inventive concept and have the same beneficial effects as the methods adopted, operated or implemented therein.

[0063] The present application also provides an electronic device corresponding to the method for measuring the flow rate of fluid in a pipeline provided in the above embodiment. Figure 7 , which shows a schematic diagram of an electronic device provided by some embodiments of the present application. Figure 7 As shown, the electronic device 30 may include: a processor 300, a memory 301, a bus 302 and a communication interface 303, wherein the processor 300, the communication interface 303 and the memory 301 are connected via the bus 302; the memory 301 stores a computer program that can be run on the processor 300, and when the processor 300 runs the computer program, it executes the method for measuring the flow rate of the fluid in the pipeline provided by any of the aforementioned embodiments of the present application.

[0064] Memory 301 may include high-speed random access memory (RAM) and may also include non-volatile memory, such as at least one disk storage. Communication between the system network element and at least one other network element is achieved through at least one physical port 303 (which may be wired or wireless), and may use the Internet, a wide area network, a local area network, a metropolitan area network, etc.

[0065] The bus 302 may be an ISA bus, a PCI bus, or an EISA bus. The bus may be divided into an address bus, a data bus, a control bus, etc. The memory 301 is used to store programs. The processor 300 executes the programs upon receiving execution instructions. The method for measuring the flow velocity of a fluid in a pipeline disclosed in any of the aforementioned embodiments of the present application may be applied to or implemented by the processor 300.

[0066] The processor 300 may be an integrated circuit with signal processing capabilities. During implementation, each step of the above method can be completed by hardware integrated logic circuits in the processor 300 or by software instructions. The above processor 300 may be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it may also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor may be a microprocessor or any conventional processor. The steps of the method disclosed in conjunction with the embodiments of this application can be directly implemented and executed by a hardware decoding processor, or by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium mature in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. The storage medium is located in the memory 301 , and the processor 300 reads the information in the memory 301 and completes the steps of the above method in combination with its hardware.

[0067] The electronic device provided in the embodiment of the present application and the method for measuring the flow rate of fluid in a pipeline provided in the embodiment of the present application are based on the same inventive concept and have the same beneficial effects as the methods adopted, operated or implemented therein.

[0068] An embodiment of the present application also provides a computer-readable storage medium corresponding to the method for measuring the flow rate of a fluid in a pipeline provided by the aforementioned embodiment, on which a computer program (i.e., a program product) is stored. When the computer program is run by a processor, it will execute the method for measuring the flow rate of a fluid in a pipeline provided by any of the aforementioned embodiments.

[0069] It should be noted that examples of the computer-readable storage medium may also include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other optical or magnetic storage media, which are not listed here one by one.

[0070] An embodiment of the present application also provides a computer program product corresponding to the method for measuring the flow rate of fluid in a pipeline provided by the aforementioned embodiment, including a computer program, which is executed by a processor to implement the method for measuring the flow rate of fluid in a pipeline provided by the aforementioned embodiments.

[0071] The computer-readable storage medium and computer program product provided in the above-mentioned embodiments of the present application are based on the same inventive concept as the method for measuring the flow rate of fluid in a pipeline provided in the embodiments of the present application, and have the same beneficial effects as the methods adopted, run or implemented by the application programs stored therein.

[0072] It should be noted that:

[0073] The algorithms and displays provided herein are not inherently related to any particular computer, virtual device, or other device. Various general-purpose devices may also be used in conjunction with the teachings herein. Based on the above description, it is apparent that the structure required for constructing such devices is suitable. In addition, the present application is not directed to any specific programming language. It should be understood that various programming languages may be utilized to implement the present application described herein, and the above description of specific languages is provided for the purpose of disclosing the best mode of implementation of the present application.

[0074] In the description provided herein, a large number of specific details are described. However, it is understood that the embodiments of the present application can be practiced without these specific details. In some instances, well-known methods, structures, and techniques are not shown in detail so as not to obscure the understanding of this description.

[0075] Similarly, it should be understood that in order to streamline the present application and aid in understanding one or more of the various inventive aspects, in the above description of the exemplary embodiments of the present application, various features of the present application are sometimes grouped together into a single embodiment, figure, or description thereof. However, this disclosed method should not be interpreted as reflecting an intention that the claimed application requires more features than are expressly recited in each claim. Rather, as reflected in the claims below, inventive aspects lie in fewer than all the features of the individual embodiments disclosed above. Accordingly, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim itself serving as a separate embodiment of the present application.

[0076] Those skilled in the art will appreciate that the modules in the devices in the embodiments may be adaptively changed and arranged in one or more devices different from the embodiments. The modules or units or components in the embodiments may be combined into one module or unit or component, and in addition may be divided into multiple submodules or subunits or subcomponents. All features disclosed in this specification (including the accompanying claims, abstracts and drawings) and all processes or units of any method or device disclosed herein may be combined in any combination, except that at least some of such features and / or processes or units are mutually exclusive. Unless expressly stated otherwise, each feature disclosed in this specification (including the accompanying claims, abstracts and drawings) may be replaced by an alternative feature providing the same, equivalent or similar purpose.

[0077] Furthermore, those skilled in the art will appreciate that although some embodiments described herein include certain features included in other embodiments but not other features, combinations of features from different embodiments are intended to be within the scope of this application and to form different embodiments. For example, in the claims below, any of the claimed embodiments may be used in any combination.

[0078] The various component embodiments of the present application can be implemented in hardware, or implemented in a software module running on one or more processors, or implemented in a combination thereof. Those skilled in the art will appreciate that a microprocessor or digital signal processor (DSP) can be used in practice to implement some or all of the functions of some or all of the components in the creation device of the virtual machine according to an embodiment of the present application. The application can also be implemented as a part or all of the equipment or device program (for example, computer program and computer program product) for performing the method described herein. Such a program realizing the present application can be stored on a computer-readable medium, or can have the form of one or more signals. Such a signal can be downloaded from an Internet website, or provided on a carrier signal, or provided in any other form.

[0079] It should be noted that the above embodiments illustrate rather than limit the present application, and that a person skilled in the art may devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference symbols placed between brackets should not be construed as limiting the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present application may be implemented by means of hardware comprising several different elements and by means of appropriately programmed computers. In a unit claim enumerating several means, several of these means may be embodied by the same item of hardware. The use of the words first, second, and third etc. does not indicate any order. These words may be interpreted as names.

[0080] The above description is merely a preferred embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A system for measuring the flow rate of a fluid in a pipeline, comprising an ultrasonic flowmeter and a pipeline, wherein the ultrasonic flowmeter comprises a plurality of ultrasonic transducers, characterized in that: include: Each of the ultrasonic transducers includes a circuit printed board, a transducer chip arranged on the circuit printed board, and a transmitting array and a receiving array arranged on the transducer chip; A first ultrasonic transducer and a second ultrasonic transducer are respectively installed on both sides of the pipeline, the first ultrasonic transducer is at least one of the plurality of ultrasonic transducers, and the second ultrasonic transducer is at least one of the plurality of ultrasonic transducers except the first ultrasonic transducer; A target angle is formed between a line connecting the first ultrasonic transducer and the second ultrasonic transducer and a flow direction of the fluid in the pipeline.

2. The system for measuring the flow rate of fluid in a pipeline according to claim 1, characterized in that: The transmitting array and the receiving array are laid flatly on the left and right or on the top and bottom on the transducer chip.

3. The system for measuring the flow rate of fluid in a pipeline according to claim 1, characterized in that: The transducer chip includes a transmitting transducer chip and a receiving transducer chip; The transmitting array is arranged on the transmitting transducer chip, and the receiving array is arranged on the receiving transducer chip; The transmitting transducer chip and the receiving transducer chip are laid flatly on the left and right or on the top and bottom of the circuit printed board.

4. The system for measuring the flow rate of fluid in a pipeline according to claim 1, characterized in that: The transmitting array includes a plurality of transmitting units, each of the transmitting units includes a plurality of transmitting piezoelectric elements, and the plurality of transmitting piezoelectric elements form a preset shape, and each of the transmitting units is flattened on the transducer chip; The center position of each transmitting unit includes at least one receiving piezoelectric element of the receiving array.

5. The system for measuring the flow rate of fluid in a pipeline according to any one of claims 1 to 4, characterized in that: The transmitting array includes a plurality of transmitting piezoelectric elements, each of which has the same size and a first array element spacing between each of which is the same; The receiving array includes a plurality of receiving piezoelectric elements, each of which has the same size and a same second array element spacing between each of which has the same second array element spacing; The size of each transmitting piezoelectric element is different from the size of each receiving piezoelectric element.

6. The system for measuring the flow rate of fluid in a pipeline according to claim 1, characterized in that: The target angle is any angle within the range of 0°-90°.

7. A method for measuring the flow rate of a fluid in a pipeline, characterized in that: The measuring method is performed using the measuring system for measuring the flow rate of the fluid in the pipeline according to any one of claims 1 to 6, and the measuring method comprises: Acquiring a first straight-line distance between the first ultrasonic transducer and the second ultrasonic transducer, the target angle, and an ultrasonic velocity of the fluid to be measured; Acquiring a downstream propagation time of the ultrasonic wave transmitted along the flow direction and passing through the pipe, and acquiring a upstream propagation time of the ultrasonic wave transmitted along a direction opposite to the flow direction and passing through the pipe; Calculating a time difference between the downstream transmission time and the upstream transmission time; The flow velocity of the fluid to be measured in the pipeline is calculated based on the first straight-line distance, the ultrasonic velocity, the target angle, and the time difference.

8. The method for measuring the flow rate of fluid in a pipeline according to claim 7, characterized in that: The calculating the flow velocity of the fluid to be measured in the pipeline based on the first straight-line distance, the ultrasonic velocity, the target angle, and the time difference includes: Calculating a second straight-line distance based on the first straight-line distance and the target angle, where the second straight-line distance is used to represent the straight-line distance of a side opposite to the target angle; Based on the second straight-line distance, the ultrasonic velocity, the target angle, and the time difference, the flow velocity of the fluid to be measured in the pipeline is calculated using the following formula: Wherein, v represents the flow velocity of the fluid to be measured in the pipeline, c represents the ultrasonic velocity, Δt represents the time difference, and D represents the second straight-line distance. represents the target angle.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the method according to claim 7 or 8 is implemented.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the method according to claim 7 or 8 is implemented.

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