Method for correcting output power of ultrasonic treatment head, ultrasonic treatment device and storage medium

Abstract

The application provides an output power correction method of an ultrasonic treatment head, an ultrasonic treatment device and a storage medium. The output power correction method of the ultrasonic treatment head comprises the following steps: reading a resonance frequency and reference duty cycles of multiple gears stored in a current ultrasonic treatment head; driving a transducer of the current ultrasonic treatment head at the resonance frequency to obtain an excitation signal amplitude value corresponding to the resonance frequency; obtaining a correction factor of a duty cycle of the resonance frequency according to the excitation signal amplitude value and a reference excitation signal amplitude value stored in the current ultrasonic treatment head; and correcting the reference duty cycle of each gear by using the correction factor to obtain a corrected duty cycle. The ultrasonic treatment device provided by the application can improve the ultrasonic output power accuracy.

Description

Technical Field

[0001] This invention relates to the field of ultrasonic therapy equipment technology, specifically to an output power correction method for an ultrasonic therapy head, an ultrasonic therapy device using the same method, and a computer-readable storage medium using the same method. Background Technology

[0002] Currently, the lifespan of the ultrasonic transducer in the treatment head of a focused ultrasound device is significantly shorter than that of the main unit. Therefore, the treatment head generally needs to be replaced after a period of use. However, when a new treatment head is paired with the original device, due to the difference in the parameters of the transducer itself, the ultrasonic output power may not meet the standard.

[0003] The current solution mainly involves using a fixture to calibrate the transducer frequency and power. Ultrasonic output testing is performed using a fixture with the same circuitry as the main unit. The frequency parameters and duty cycle parameters closest to the resonant frequency are written into the non-volatile memory inside the treatment head. This allows the treatment head to be placed on any device, and its resonant frequency and duty cycle data can be obtained by reading the parameter information of the treatment head, thus achieving the corresponding excitation.

[0004] However, due to the actual parameter differences of LC, there will be an error of about 4% between the LC resonant frequency of the host and the tooling. That is, the actual excitation parameters of the host and the tooling will be different. If the host is excited exactly according to the parameters of the treatment head, it is very likely that the actual output power of the transducer will be different due to the difference in LC process, causing its ultrasonic output power to exceed the error value specified in the standard. Summary of the Invention

[0005] The primary objective of this invention is to provide a method for correcting the output power of an ultrasonic treatment head to improve the accuracy of ultrasonic output power.

[0006] A second objective of this invention is to provide an ultrasound therapy device that improves the accuracy of ultrasound output power.

[0007] A third objective of this invention is to provide a computer-readable storage medium that improves the accuracy of ultrasonic output power.

[0008] To achieve the aforementioned first objective, the ultrasonic treatment head output power correction method provided by the present invention includes: reading the resonant frequency and reference duty cycles of multiple gears stored in the current ultrasonic treatment head; driving the transducer of the current ultrasonic treatment head with the resonant frequency to obtain the excitation signal amplitude value corresponding to the resonant frequency; obtaining a correction factor for the duty cycle of the resonant frequency based on the excitation signal amplitude value and the reference excitation signal amplitude value stored in the current ultrasonic treatment head; and correcting the reference duty cycle of each gear using the correction factor to obtain the corrected duty cycle.

[0009] As can be seen from the above scheme, the output power correction method of the ultrasonic treatment head of the present invention, after reading the resonant frequency and reference duty cycles of multiple gears stored in the current ultrasonic treatment head, obtains the excitation signal amplitude value corresponding to the resonant frequency, obtains the correction factor of the duty cycle of the resonant frequency based on the excitation signal amplitude value and the reference excitation signal amplitude value stored in the current ultrasonic treatment head, and uses the correction factor to correct the reference duty cycle of each gear, thereby enabling the current ultrasonic treatment head to match the current ultrasonic treatment equipment and improving the accuracy of ultrasonic output power.

[0010] In a further scheme, the correction factor is obtained by the following formula: F = A1 / A2; where A1 is the amplitude value of the excitation signal and A2 is the amplitude value of the reference excitation signal.

[0011] Therefore, it can be seen that the correction accuracy of the duty cycle can be improved by using the ratio of the excitation signal amplitude value to the reference excitation signal amplitude value as a correction factor.

[0012] In a further scheme, the corrected duty cycle is equal to the product of the reference duty cycle and the correction factor.

[0013] Therefore, using the product of the reference duty cycle and the correction factor as the corrected duty cycle can improve the accuracy of ultrasonic output power.

[0014] In a further embodiment, before obtaining the resonant frequency stored in the current ultrasonic treatment head, the method further includes: testing and obtaining the resonant frequency of the current ultrasonic treatment head, the reference duty cycle of multiple settings, and the amplitude value of the reference excitation signal; and storing the resonant frequency, the reference duty cycle of multiple settings, and the amplitude value of the reference excitation signal in the current ultrasonic treatment head.

[0015] Therefore, in order to facilitate the use of the treatment head in any ultrasound therapy device, the resonant frequency, reference duty cycle of multiple levels, and reference excitation signal amplitude value are stored in the current ultrasound therapy head so that the ultrasound therapy device can read the control parameters to control the current ultrasound therapy head.

[0016] In a further embodiment, the steps for testing and obtaining the resonant frequency of the current ultrasonic treatment head, the reference duty cycle of multiple settings, and the reference excitation signal amplitude value include: setting the duty cycle of the excitation frequency used to excite the current ultrasonic treatment head to the highest setting, sequentially adjusting the frequency value of the excitation frequency, and obtaining the output power value corresponding to each frequency value of the current ultrasonic treatment head; and taking the frequency value corresponding to the maximum value of the output power value as the resonant frequency.

[0017] Therefore, it can be seen that by setting the duty cycle of the excitation frequency used to excite the current ultrasonic treatment head to the highest level and adjusting the ultrasonic output power to the highest rated output, other lower levels can also meet the requirements. At the same time, the frequency values ​​of the excitation frequency are adjusted sequentially, and the output power value corresponding to the current ultrasonic treatment head at each frequency value is obtained. The frequency value corresponding to the maximum output power value is closest to the resonant frequency, and therefore, this is taken as the resonant frequency.

[0018] In a further scheme, the step of adjusting the frequency value of the excitation frequency in sequence includes: gradually increasing the frequency value of the excitation frequency by a preset amplitude.

[0019] It is evident that the actual excitation frequency of the transducer differs from the nominal frequency. Therefore, gradually increasing the excitation frequency value with a preset amplitude can improve the accuracy of the resonant frequency.

[0020] In a further embodiment, the steps of testing and obtaining the resonant frequency of the current ultrasonic treatment head, the reference duty cycle of multiple power levels, and the amplitude value of the reference excitation signal also include: driving the transducer of the current ultrasonic treatment head with the resonant frequency, adjusting the duty cycle of the resonant frequency so that the output power value of the current ultrasonic treatment head meets the reference output power of the current power level, and using the duty cycle that meets the reference output power as the reference duty cycle corresponding to the current power level.

[0021] Therefore, in order to facilitate the output of different power levels of the current ultrasonic treatment head, the duty cycle can be adjusted. The duty cycle that meets the reference output power can be used as the reference duty cycle corresponding to the current power level, which can be easily read and used for control by the ultrasonic treatment equipment.

[0022] In a further embodiment, after obtaining the corrected duty cycle, the method further includes storing the corrected duty cycle corresponding to each gear in the ultrasound therapy device.

[0023] Therefore, storing the calibrated duty cycle corresponding to each gear position in the ultrasound therapy device facilitates subsequent reading and control.

[0024] To achieve the second objective of the present invention, the present invention provides an ultrasound therapy device including a processor and a memory, the memory storing a computer program, which, when executed by the processor, implements the steps of the above-described ultrasound therapy head output power correction method.

[0025] To achieve the third objective of the present invention, the present invention provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a controller, implements the steps of the above-described ultrasonic treatment head output power correction method. Attached Figure Description

[0026] Figure 1This is a circuit block diagram of an ultrasonic therapy device that uses the output power correction method of the ultrasonic therapy head of the present invention.

[0027] Figure 2 This is a circuit diagram of the amplitude detection circuit in an ultrasonic therapy device that applies the output power correction method of the ultrasonic therapy head of the present invention.

[0028] Figure 3 This is a flowchart of an embodiment of the ultrasonic treatment head output power correction method of the present invention.

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments. Detailed Implementation

[0030] The output power correction method for the ultrasonic treatment head of the present invention is an application program used in ultrasonic treatment equipment to correct the output power of the ultrasonic treatment head. Preferably, in this embodiment, as... Figure 1 As shown, the ultrasound therapy device includes a main control circuit 1, a transducer excitation circuit 2, an ultrasound therapy head 3, and an amplitude detection circuit 4. The main control circuit 1 is electrically connected to the transducer excitation circuit 2, and the output terminal of the transducer excitation circuit 2 is electrically connected to the ultrasound therapy head 3. The input terminal of the amplitude detection circuit 4 is electrically connected to the output terminal of the transducer excitation circuit 2, and the output terminal of the amplitude detection circuit 4 is electrically connected to the main control circuit 1. The ultrasound therapy head 3 is detachable and includes a transducer 31 and a therapy head memory 32. The transducer 31 is electrically connected to the output terminal of the transducer excitation circuit 2, and the therapy head memory 32 is electrically connected to the main control circuit 1. The transducer excitation circuit 2 uses a known transducer excitation circuit. The main control circuit 1 acquires the control parameters from the therapy head memory 32 and controls the transducer excitation circuit 2 to send an excitation signal to the ultrasound therapy head 3 according to the control parameters. The amplitude detection circuit 4 is used to acquire the amplitude value of the excitation signal.

[0031] In this embodiment, see Figure 2The amplitude detection circuit 4 includes a voltage divider circuit 41, a DC blocking capacitor C1, a detector circuit 42, and a low-pass filter 43. The voltage divider circuit 41 includes resistors R1 and R2. The first end of resistor R1 is electrically connected to the output terminal of the transducer excitation circuit 2 via the DRIVER terminal. The second end of resistor R1 is electrically connected to the first end of resistor R2, and the second end of resistor R2 is grounded. The first end of the DC blocking capacitor C1 is electrically connected to the second end of resistor R1, and the second end of DC blocking capacitor C1 is electrically connected to the input terminal of the detector circuit 42. The detector circuit 42 includes a resistor R3, a diode D1, a resistor R4, and a capacitor C2. The first end of resistor R3 is electrically connected to the second end of DC blocking capacitor C1, and the second end of resistor R3 is grounded. The anode of diode D1 is electrically connected to the first end of resistor R3, and the cathode of diode D1 is electrically connected to the first end of resistor R4, and the second end of resistor R4 is grounded. The first end of capacitor C2 is electrically connected to the first end of resistor R4, and the second end of capacitor C2 is electrically connected to the second end of resistor R4. The detector circuit 42 converts the alternating positive and negative high-frequency signal into a single-ended envelope signal for amplitude extraction by subsequent circuits. The low-pass filter 43 includes resistors R5 and R6, capacitors C3 and C4, and comparator U1. The first terminal of resistor R5 is electrically connected to the negative terminal of diode D1; the second terminal of resistor R5 is electrically connected to the first terminal of resistor R6; the second terminal of resistor R6 is electrically connected to the positive terminal of comparator U1; the first terminal of capacitor C3 is electrically connected to the second terminal of resistor R5; the second terminal of capacitor C3 is electrically connected to the output terminal of comparator U1; the first terminal of capacitor C4 is electrically connected to the second terminal of resistor R6; the second terminal of capacitor C4 is grounded; the output terminal of comparator U1 is also electrically connected to the inverting terminal of comparator U1; and the output terminal of comparator U1 is electrically connected to the main control circuit 1 via terminal CUR. The low-pass filter 43 mainly filters out the fundamental frequency and emitter follower signal. Due to its sufficiently high input impedance, it maintains signal stability in the detector circuit, thus ensuring that the input signal waveform is not affected regardless of the output impedance. The main control circuit 1 acquires and performs ADC conversion to obtain the amplitude value of the excitation signal.

[0032] Example of an ultrasonic therapy head output power correction method:

[0033] like Figure 3As shown, in this embodiment, the output power correction method for the ultrasonic treatment head first executes step S1 to test and obtain the resonant frequency, reference duty cycles for multiple gear levels, and reference excitation signal amplitude values ​​of the current ultrasonic treatment head. To facilitate the ultrasonic treatment head's use in an ultrasonic therapy device, which can send excitation signals according to the corresponding ultrasonic treatment head, it is necessary to store the resonant frequency, reference duty cycles for multiple gear levels, and reference excitation signal amplitude values ​​in the ultrasonic treatment head. The resonant frequency, reference duty cycles for multiple gear levels, and reference excitation signal amplitude values ​​of the current ultrasonic treatment head can be obtained through testing with the ultrasonic therapy device, or alternatively, through tooling equipment with the same functions as the ultrasonic therapy device.

[0034] In this embodiment, the steps for testing and obtaining the resonant frequency of the current ultrasonic treatment head, the reference duty cycle of multiple settings, and the reference excitation signal amplitude value include: setting the duty cycle of the excitation frequency used to excite the current ultrasonic treatment head to the highest setting, sequentially adjusting the frequency value of the excitation frequency, and obtaining the output power value corresponding to each frequency value of the current ultrasonic treatment head; and taking the frequency value corresponding to the maximum output power value as the resonant frequency. The duty cycle corresponding to the highest setting can be preset according to experimental data. When obtaining the output power value corresponding to each frequency value of the current ultrasonic treatment head, an ultrasonic power meter can be used to detect the current ultrasonic treatment head. By setting the duty cycle of the excitation frequency used to excite the current ultrasonic treatment head to the highest setting, and adjusting the ultrasonic output power value to meet the maximum rated output power, other smaller settings can also meet the corresponding ultrasonic output power requirements. At the same time, by sequentially adjusting the frequency value of the excitation frequency and obtaining the output power value corresponding to each frequency value of the current ultrasonic treatment head, the frequency value corresponding to the maximum output power value is closest to the resonant frequency, and therefore, it can be taken as the resonant frequency.

[0035] In this embodiment, the step of sequentially adjusting the excitation frequency value includes: gradually increasing the excitation frequency value by a preset amplitude. Since the actual excitation frequency of the transducer differs from the nominal frequency, gradually increasing the excitation frequency value by a preset amplitude can improve the accuracy of the resonant frequency. The preset amplitude is pre-set based on direct data; for example, if the actual excitation frequency of the transducer has an error of approximately 10% compared to the nominal frequency, the excitation frequency is set to a preset amplitude of ±10% of the nominal frequency.

[0036] In this embodiment, the steps of testing and obtaining the resonant frequency of the current ultrasonic treatment head, the reference duty cycle for multiple power levels, and the amplitude value of the reference excitation signal further include: driving the transducer of the current ultrasonic treatment head with the resonant frequency, adjusting the duty cycle of the resonant frequency so that the output power value of the current ultrasonic treatment head meets the reference output power for the current power level, and using the duty cycle that meets the reference output power as the reference duty cycle corresponding to the current power level. To facilitate the output of different power levels by the current ultrasonic treatment head, this can be achieved by adjusting the duty cycle. Using the duty cycle that meets the reference output power for each power level as the reference duty cycle corresponding to the current power level facilitates reading and control by the ultrasonic treatment equipment.

[0037] In addition, when testing and obtaining the resonant frequency of the current ultrasonic treatment head, the reference duty cycle of multiple gears, and the reference excitation signal amplitude value, the excitation signal at the resonant frequency can also be detected by the amplitude detection circuit to obtain the reference excitation signal amplitude value.

[0038] After obtaining the resonant frequency, reference duty cycles for multiple settings, and reference excitation signal amplitude values ​​of the current ultrasonic treatment head through testing, step S2 is executed to store the resonant frequency, reference duty cycles for multiple settings, and reference excitation signal amplitude values ​​in the current ultrasonic treatment head. After obtaining the resonant frequency, reference duty cycles for multiple settings, and reference excitation signal amplitude values, the main control circuit can write these values ​​into the treatment head memory of the current ultrasonic treatment head so that they can be read when the current ultrasonic treatment head is installed in other ultrasonic treatment devices.

[0039] After storing the resonant frequency, reference duty cycles for multiple settings, and reference excitation signal amplitude values ​​in the current ultrasonic treatment head, step S3 is executed to read the resonant frequency and reference duty cycles for multiple settings stored in the current ultrasonic treatment head. When the ultrasonic treatment head is installed in an ultrasonic therapy device, it is necessary to obtain the control parameters stored in the ultrasonic treatment head in order to facilitate sending corresponding excitation signals to the ultrasonic treatment head.

[0040] After reading the resonant frequency and reference duty cycles of multiple gears stored in the current ultrasonic treatment head, step S4 is executed to drive the transducer of the current ultrasonic treatment head at the resonant frequency and obtain the excitation signal amplitude value corresponding to the resonant frequency. After obtaining the resonant frequency stored in the current ultrasonic treatment head, an excitation signal can be sent to the transducer of the current ultrasonic treatment head at the resonant frequency to obtain the excitation signal amplitude value corresponding to the resonant frequency.

[0041] After obtaining the excitation signal amplitude value, step S5 is executed to obtain the correction factor for the duty cycle of the resonant frequency based on the excitation signal amplitude value and the reference excitation signal amplitude value stored in the current ultrasonic treatment head. In this embodiment, the correction factor is obtained by the following formula: F = A1 / A2; where A1 is the excitation signal amplitude value and A2 is the reference excitation signal amplitude value. To match the current ultrasonic treatment head with the current ultrasonic treatment device, using the ratio of the excitation signal amplitude value to the reference excitation signal amplitude value as the correction factor can improve the correction accuracy of the duty cycle, thereby improving the accuracy of the ultrasonic output power.

[0042] After obtaining the correction factor, step S6 is executed to correct the reference duty cycle of each gear using the correction factor, thus obtaining the corrected duty cycle. In this embodiment, the corrected duty cycle is equal to the product of the reference duty cycle and the correction factor. Correcting the reference duty cycle of each gear using the correction factor allows each gear to be adjusted to match the current ultrasound therapy device. Because different gears differ only in their duty cycles, while the frequency remains the same, changing the duty cycle changes the output power. Therefore, the correction factor adapts to the correction of the duty cycle of all gears at that frequency. For example, if the duty cycle of a certain gear is X%, then the corrected duty cycle is X×F%. Using the corrected duty cycle to output the excitation signal, the ultrasound therapy head can achieve the correct output of ultrasound power.

[0043] After obtaining the corrected duty cycle, step S7 is executed to store the corrected duty cycle corresponding to each setting in the ultrasound therapy device. Storing the corrected duty cycle corresponding to each setting in the ultrasound therapy device facilitates subsequent reading and control of the current ultrasound therapy head.

[0044] It should be noted that those skilled in the art should know that although steps S1 to S2 in this embodiment are in the same embodiment as steps S3 to S7, steps S1 to S2 are used to write control parameters to the ultrasonic treatment head. In practical applications, the ultrasonic treatment head that uses the current ultrasonic treatment equipment to write control parameters only needs to be calibrated when used in other ultrasonic treatment equipment.

[0045] As described above, the ultrasonic treatment head output power correction method of the present invention reads the resonant frequency and reference duty cycles of multiple gears stored in the current ultrasonic treatment head, obtains the excitation signal amplitude value corresponding to the resonant frequency, obtains the correction factor of the duty cycle of the resonant frequency based on the excitation signal amplitude value and the reference excitation signal amplitude value stored in the current ultrasonic treatment head, and uses the correction factor to correct the reference duty cycle of each gear, thereby enabling the current ultrasonic treatment head to match the current ultrasonic treatment device and improving the accuracy of ultrasonic output power.

[0046] Example of ultrasound therapy equipment:

[0047] The ultrasound therapy device in this embodiment includes a controller, which executes a computer program to implement the steps in the above-described ultrasound therapy head output power correction method embodiment.

[0048] For example, a computer program can be divided into one or more modules, one or more of which are stored in memory and executed by a controller to perform the present invention. One or more modules can be a series of computer program instruction segments capable of performing a specific function, which describe the execution process of the computer program in an ultrasound therapy device.

[0049] Ultrasound therapy equipment may include, but is not limited to, controllers and memory. Those skilled in the art will understand that ultrasound therapy equipment may include more or fewer components, or combinations of certain components, or different components; for example, ultrasound therapy equipment may also include input / output devices, network access devices, buses, etc.

[0050] For example, the controller can be a Central Processing Unit (CPU), or other general-purpose controllers, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose controller can be a microcontroller or any conventional controller. The controller is the control center of the ultrasound therapy equipment, connecting all parts of the equipment through various interfaces and lines.

[0051] The memory can be used to store computer programs and / or modules. The controller realizes various functions of the ultrasound therapy device by running or executing the computer programs and / or modules stored in the memory, and by calling the data stored in the memory. For example, the memory may mainly include a program storage area and a data storage area. The program storage area may store the operating system, at least one application program required for a function (e.g., sound receiving function, sound-to-text function, etc.); the data storage area may store data created based on the use of the mobile phone (e.g., audio data, text data, etc.). In addition, the memory may include high-speed random access memory, and may also include non-volatile memory, such as hard disk, RAM, plug-in hard disk, smart media card (SMC), secure digital (SD) card, flash card, at least one disk storage device, flash memory device, or other volatile solid-state storage device.

[0052] Examples of computer-readable storage media:

[0053] If the modules integrated into the ultrasound therapy device in the above embodiments are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, all or part of the processes in the above embodiments of the ultrasound therapy head output power correction method can also be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by a controller, it can implement the steps of the above embodiments of the ultrasound therapy head output power correction method. The computer program includes computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. The storage medium can include: any entity or device capable of carrying computer program code, recording media, USB flash drives, portable hard drives, magnetic disks, optical disks, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signals, telecommunication signals, and software distribution media, etc. It should be noted that the content contained in the computer-readable medium can be appropriately added or removed according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, the computer-readable medium does not include electrical carrier signals and telecommunication signals.

[0054] It should be noted that the above are only preferred embodiments of the present invention, but the design concept of the invention is not limited thereto. Any non-substantial modifications made to the present invention using this concept also fall within the protection scope of the present invention.

Claims

1. A method for correcting the output power of an ultrasonic therapy head, characterized in that, include: Read the resonant frequency and reference duty cycle of multiple settings stored in the current ultrasound treatment head; The transducer of the current ultrasonic treatment head is driven at the resonant frequency to obtain the amplitude value of the excitation signal corresponding to the resonant frequency; The correction factor for the duty cycle of the resonant frequency is obtained based on the amplitude value of the excitation signal and the amplitude value of the reference excitation signal stored in the current ultrasonic treatment head. The reference duty cycle for each gear is corrected using the correction factor to obtain the corrected duty cycle.

2. The method for correcting the output power of an ultrasonic treatment head according to claim 1, characterized in that: The correction factor is obtained by the following formula: F = A1 / A2; Where A1 is the amplitude value of the excitation signal and A2 is the amplitude value of the reference excitation signal.

3. The method for correcting the output power of an ultrasonic treatment head according to claim 1, characterized in that: The corrected duty cycle is equal to the product of the reference duty cycle and the correction factor.

4. The method for correcting the output power of an ultrasonic treatment head according to any one of claims 1 to 3, characterized in that: Before the step of obtaining the resonant frequency stored in the current ultrasound treatment head, the procedure also includes: The test obtains the resonant frequency of the current ultrasonic treatment head, the reference duty cycle of multiple settings, and the amplitude value of the reference excitation signal; The resonant frequency, the reference duty cycle at multiple levels, and the reference excitation signal amplitude value are stored in the current ultrasound treatment head.

5. The method for correcting the output power of an ultrasonic treatment head according to claim 4, characterized in that: The steps for testing and obtaining the resonant frequency of the current ultrasonic treatment head, the reference duty cycle of multiple settings, and the amplitude value of the reference excitation signal include: The duty cycle of the excitation frequency used to excite the current ultrasonic treatment head is set to the highest level. The frequency values ​​of the excitation frequency are adjusted sequentially, and the output power value of the current ultrasonic treatment head at each frequency value is obtained. The frequency value corresponding to the maximum value of the output power is taken as the resonant frequency.

6. The method for correcting the output power of an ultrasonic treatment head according to claim 5, characterized in that: The steps of sequentially adjusting the frequency values ​​of the excitation frequency include: The frequency value of the excitation frequency is gradually increased by a preset amplitude.

7. The method for correcting the output power of an ultrasonic treatment head according to claim 5, characterized in that: The steps for testing and obtaining the resonant frequency of the current ultrasonic treatment head, the reference duty cycle of multiple settings, and the amplitude value of the reference excitation signal further include: The transducer of the current ultrasonic treatment head is driven by the resonant frequency, and the duty cycle of the resonant frequency is adjusted so that the output power value of the current ultrasonic treatment head meets the reference output power of the current power level. The duty cycle that meets the reference output power is used as the reference duty cycle corresponding to the current power level.

8. The method for correcting the output power of an ultrasonic treatment head according to any one of claims 1 to 3, characterized in that: After obtaining the corrected duty cycle, the process also includes: The corrected duty cycle corresponding to each gear is stored in the ultrasound therapy device.

9. An ultrasound therapy device, comprising a processor and a memory, characterized in that: The memory stores a computer program that, when executed by the processor, implements the steps of the output power correction method for the ultrasonic treatment head as described in any one of claims 1 to 8.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by the controller, it implements the steps of the output power correction method for the ultrasonic treatment head as described in any one of claims 1 to 8.

Images