High pressure pulse generating system for obtaining random-wave-form forced response and working procedure thereof

An arbitrary waveform, high-voltage pulse technology, applied in the direction of conversion equipment without intermediate conversion to AC, can solve the problems affecting the detection efficiency, the instrument is not easy to move, the transformer is bulky, etc., to achieve flexible data processing, improve efficiency, and simple system structure. Effect
CN101834523BActive Publication Date: 2013-03-06PLA UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
PLA UNIV OF SCI & TECH
Publication Date
2013-03-06

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Abstract

The invention relates to a high pressure pulse generating system for obtaining random-wave-form forced response and a working procedure thereof; wherein the high pressure pulse generating system has the following components: 1) a high pressure pulse generating circuit for generating forced and detected structure signals and synchronous trigger signals, 2) a PXI interface structure for providing power and 3) a DC / DC booster circuit for obtaining DC high voltage. The generating system and working procedure of the invention has the following technical effects: 1) improving efficiency of nondestructive testing and lowering equipment cost; 2) obtaining multiple random-wave-form equivalent responses only through one excitation, more flexibly carrying out data processing on detection signals and improving data use effectiveness; 3) obtaining power and raising voltage through the PXI interface, facilitating compatible use with other computer systems and virtual instruments and enjoying simple system configuration.
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Description

technical field

[0001] The invention relates to a high-voltage pulse generation system and a working method for obtaining an excitation response of an arbitrary waveform, belonging to the field of ultrasonic nondestructive testing. Background technique

[0002] Ultrasonic nondestructive testing (UT) is an important method of nondestructive testing of objects, which is applied to almost all industrial sectors. Compared with other conventional non-destructive testing technologies, it has the characteristics of wide range of detection objects, large detection depth, accurate defect location, high sensitivity, low cost, convenient work, fast speed, harmless to human body and convenient on-site use.

[0003] When ultrasonic waves are used for non-destructive generation, two forms of step pulse broadband excitation and specific waveform narrowband excitation are generally used. Specific waveform narrowband excitation helps to improve the resolution of ultrasonic imaging system an...

Claims

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