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Frequency control circuit and ultrasonic transducer system

A frequency control, transducer technology, applied in the direction of the fluid using vibration, can solve problems such as reducing the efficiency of adjusting the frequency of the excitation signal, affecting the response speed of the processor, etc.

Active Publication Date: 2020-07-07
CHONGQING XISHAN SCI & TECH
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Problems solved by technology

[0005] Based on this, it is necessary for the traditional processor to run the program to judge the phase difference between the voltage and current after receiving the signal corresponding to the voltage and current in the excitation signal, which will affect the response speed of the processor and reduce the frequency of adjusting the excitation signal To solve the problem of efficiency, provide a frequency control circuit and ultrasonic transducer system

Method used

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  • Frequency control circuit and ultrasonic transducer system
  • Frequency control circuit and ultrasonic transducer system
  • Frequency control circuit and ultrasonic transducer system

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Embodiment Construction

[0052] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. A preferred embodiment of the application is shown in the drawings. However, the present application can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this application more thorough and comprehensive.

[0053] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to and integrally integrated with the other element, or there may be an intervening element at the same time. The terms "mounted", "one end", "the other end" and similar expressions are used herein for the purpose of description only.

[0054] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commo...

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Abstract

The invention relates to a frequency control circuit and an ultrasonic transducer system. A first signal processing module is used for outputting a first to-be-detected signal through a signal collected by a voltage collecting module; a second signal processing module is used for outputting a second to-be-detected signal through electric current collected by an electric current module; according to the output detection results of the first to-be-detected signal and the second to-be-detected signal, a phase detection module enables a processor to change the frequency of a stimulus signal in a stimulus signal source according to the detection results; and the phase of the first to-be-detected signal is the same as the phase of the voltage, and the phase of the second to-be-detected signal isthe same as the phase of the electric current, so that the detection results are related to the phase of the voltage and the phase of the electric current. When the voltage is ahead of the electric current or the electric current is ahead of the voltage, the frequency of the stimulus signal is changed according to the corresponding detection results, so that the difference between a natural frequency and the frequency of the stimulus signal is reduced, and it is ensured that an ultrasonic transducer works under a working condition with the highest efficiency.

Description

technical field [0001] The invention relates to the technical field of ultrasonic transducers, in particular to a frequency control circuit and an ultrasonic transducer system. Background technique [0002] An ultrasonic transducer is an energy conversion device that converts input electrical power into mechanical power (ie, ultrasonic waves) and then transmits it out. Ultrasonic transducers are widely used in various ultrasonic equipment, such as ultrasonic scalpels, ultrasonic welding machines or ultrasonic cleaning machines. The ultrasonic transducer in the ultrasonic equipment receives the AC excitation signal from the excitation signal source and converts it into mechanical energy to drive the corresponding working equipment. [0003] Among them, the ultrasonic transducer itself has a fixed frequency. When the frequency of the excitation signal is consistent with its natural frequency, that is, when the ultrasonic transducer works at the resonant frequency, the convers...

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Application Information

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IPC IPC(8): B06B1/02
CPCB06B1/0207
Inventor 郭毅军唐福海叶强杨涛
Owner CHONGQING XISHAN SCI & TECH
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