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A Searching Method for Working Frequency Point of Ultrasonic Generator

A technology of working frequency and generator, applied in the direction of measuring ultrasonic/sonic wave/infrasonic wave, measuring resonance frequency, instruments, etc., can solve the problem of non-existence of zero phase, low accuracy of searching for the best frequency point, and inability to find the optimal working point, etc. problem, to achieve the best working frequency point accurate effect

Active Publication Date: 2020-02-18
玉环震浪超声股份有限公司
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  • Abstract
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Problems solved by technology

It has the following defects: under certain working conditions, the impedance may have overall partial capacitive or inductive characteristics. Under these working conditions, the overall phase is negative (partial capacitive) or positive (partial inductive), and the zero phase in the circuit is not exists, and cannot find the optimal operating point, so the accuracy of this method to search for the optimal frequency point is also low

Method used

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  • A Searching Method for Working Frequency Point of Ultrasonic Generator
  • A Searching Method for Working Frequency Point of Ultrasonic Generator
  • A Searching Method for Working Frequency Point of Ultrasonic Generator

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Embodiment Construction

[0030] The following are specific embodiments of the present invention, and in conjunction with the accompanying drawings, further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0031] Such as figure 1 As shown, the ultrasonic generator includes a rectification and filtering circuit 1 , an inverter circuit 2 connected to the rectification and filtering circuit 1 , a matching circuit 3 connected to the inverter circuit 2 and a transducer 4 connected to the matching circuit 3 .

[0032] Such as figure 1 As shown, the rectifier filter circuit 1 in this embodiment is composed of a filter 11 and four diodes, and the four diodes are respectively a diode D1, a diode D2, a diode D3 and a diode D4. The input end of the filter 11 is connected to a power supply 13, and the filter One output terminal of 11 is connected to the anode of diode D1 and the cathode of diode D2, the other output terminal is connected to...

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Abstract

The invention provides an ultrasonic generator working frequency point search method, belongs to the technical field of ultrasonic generators and solves the problem of low accuracy in searching for the best frequency point of an ultrasonic generator in the prior art. The ultrasonic generator working frequency point search method is characterized in that the ultrasonic generator comprises a rectifier filter circuit, an inverter circuit connected with the rectifier filter circuit, a matching circuit connected with the inverter circuit, and a transducer connected with the matching circuit. The method includes the steps of: A, setting frequency search range; B, conducting global search after the ultrasonic generator is on power; C, determining the best frequency point; D, performing continuouslocal search. The ultrasonic generator working frequency point search method has the advantage of accurately searching out the best working frequency point of the ultrasonic generator.

Description

technical field [0001] The invention belongs to the technical field of ultrasonic generators, and relates to a method for searching working frequency points of ultrasonic generators. Background technique [0002] The ultrasonic generator is an important part of the high-power ultrasonic system. The function of the ultrasonic generator is to convert the mains power into a high-frequency alternating current signal that matches the transducer, and drive the transducer to work. Ultrasonic generators are widely used, such as ultrasonic cleaning, ultrasonic welding, ultrasonic processing, ultrasonic medical treatment, etc. Especially in the field of ultrasonic cleaning, the transducer driven by the ultrasonic generator can make the cleaning object very clean. The ultrasonic cleaning device consists of an ultrasonic generator and a cleaning tank. [0003] In order to make the transducer work, the superiority of ultrasonic cleaning can be brought into play. It is required that t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01H13/00B06B1/02
CPCB06B1/0207G01H13/00
Inventor 徐志强林呼明
Owner 玉环震浪超声股份有限公司
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