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Method and device for finding resonant frequency point for transducer

A technology of resonant frequency points and transducers, applied in the direction of measuring resonant frequency, measuring devices, instruments, etc., can solve problems such as low efficiency and slow search speed, and achieve improved accuracy, improved search speed, fast and efficient search to the effect

Inactive Publication Date: 2018-05-08
锐泰安医疗科技(苏州)有限公司
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Problems solved by technology

[0003] At present, the existing method of finding the resonant frequency point of the transducer is the way of sweeping frequency, that is, linearly increasing and decreasing the frequency output energy signal to find the resonant frequency. The disadvantage is that the search speed is slow and the efficiency is not high.
For example, from 50KHz to 60KHz, in order to ensure the accuracy of the search results, it may take 10,000 times of judgment time, which is not efficient

Method used

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  • Method and device for finding resonant frequency point for transducer
  • Method and device for finding resonant frequency point for transducer
  • Method and device for finding resonant frequency point for transducer

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Embodiment Construction

[0037] The present invention will be described in detail below in conjunction with various embodiments shown in the drawings. However, these embodiments do not limit the present invention, and any structural, method, or functional changes made by those skilled in the art according to these embodiments are included in the protection scope of the present invention.

[0038] Embodiment 1 of the present invention provides a method for searching a resonance frequency point of a transducer, such as figure 1 shown, including the following steps:

[0039]Step 101: Obtain the first test interval and several first test frequency points located in the first test interval, the first test frequency point=the first initial frequency value+M*the first incremental value, M is greater than or equal to zero integer, and the first initial frequency value is greater than or equal to the minimum frequency value of the first test interval, and the first test frequency point is less than or equal t...

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Abstract

The present invention provides a method for finding a resonant frequency point for a transducer. According to the method, a method for reducing a resonant frequency point search interval is carried out for multiple rounds, the search interval is reduced to a reasonable range, then a resonant frequency point is searched in the interval, the search speed can be greatly improved, as the search interval becomes narrower, the density of the frequency sweep in the search interval is also increased, and thus the search accuracy is greatly improved.

Description

technical field [0001] The invention relates to the technical field of transducers, in particular to a method and a device for finding a resonance frequency point of a transducer. Background technique [0002] With the development of technology, ultrasonic surgical equipment has been widely used. Among them, ultrasonic transducer is the core component of ultrasonic surgical equipment. In order to make ultrasonic surgical equipment have large mechanical amplitude and high motor conversion efficiency, ultrasonic The transducer needs to work at its resonant frequency point, that is, the drive circuit should excite the ultrasonic transducer with its resonant frequency signal. It can be understood that during use, the temperature of the ultrasonic transducer will increase, and the resonance frequency point of the ultrasonic transducer will drift with the increase of temperature. Therefore, it is necessary to find the resonance frequency point of the ultrasonic transducer in real ...

Claims

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Application Information

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IPC IPC(8): G01H13/00
CPCG01H13/00
Inventor 曾凡晶曹明仇云龙
Owner 锐泰安医疗科技(苏州)有限公司
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