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Ultrasonic nondestructive testing system

A non-destructive testing, ultrasonic technology, applied in the use of sound waves/ultrasonic waves/infrasonic waves to analyze solids, use sound waves/ultrasonic waves/infrasonic waves for material analysis, measuring devices, etc.

Pending Publication Date: 2020-10-27
SHANGHAI UNIV OF ENG SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is how to overcome the current difficulties encountered by traditional ultrasonic testing technology, reduce the requirements on the surface of the measured object and improve the detection accuracy and anti-interference ability, and provide an ultrasonic nondestructive testing system and method

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Embodiment Construction

[0024] 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.

[0025] 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.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commo...

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Abstract

The invention discloses an ultrasonic nondestructive testing system. The ultrasonic nondestructive testing system comprises a laser ultrasonic transmitting system, an ultrasonic receiving system, a control and analysis imaging system and a three-axis platform system; the laser ultrasonic transmitting system comprises a high-frequency fiber laser, a light spot shaping device, a scanning galvanometer and a focusing mirror; the ultrasonic receiving system comprises a multi-array-element piezoelectric sensor, a charge amplifier and a multi-channel high-speed data acquisition card; the control andanalysis imaging system comprises a computer, a waveform processor and an imaging display and controller; the three-axis platform system comprises a three-dimensional mobile platform, a to-be-detectedworkpiece and an ultrasonic probe. According to the system of the invention, omnibearing 360-degree detection of surface and internal defects can be realized, the working efficiency is higher, the signal receiving sensitivity is higher, the price is low, the signal envelope extraction precision is higher, and the system is more suitable for industrial use.

Description

technical field [0001] The invention relates to the field of non-destructive testing, in particular to a laser ultrasonic high-sensitivity testing system and method based on phased array technology. Background technique [0002] With the continuous development of modern industry, non-destructive testing, as an indispensable means in the process of industrial development, reflects a country's modern industrial level to a certain extent. Effective non-destructive testing and evaluation can improve product quality and ensure efficient and safe production, bringing better economic benefits to enterprises. After years of development, the traditional ultrasonic testing technology has become mature. But there are also some deficiencies: the requirements for the comprehensive quality of the practitioners are relatively high, and the state of the measured object needs to be judged through experience; the requirements for the measured object are relatively high, and workpieces with c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N29/06G01N29/24G01N29/44
CPCG01N29/0654G01N29/2437G01N29/2418G01N29/4454G01N29/449G01N2291/0234G01N2291/0289G01N2291/105
Inventor 周虹高锋黄超宋大成郝路顾鹏姚伟
Owner SHANGHAI UNIV OF ENG SCI
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