发明名称 |
Laser -ultrasonic testing system |
摘要 |
In a method for ultrasonic testing of objects, ultrasound is generated inside or at the surface of the object. The surface of the object is illuminated with a beam from a long-pulse laser oscillator, typically in the range 1 mus to a few 100 mus, that is substantially free of intensity fluctuations. The light from the incident beam that is scattered or reflected by the surface of the object is collected and demodulated to obtain a signal representative of the ultrasonic motion. The method allows for the use of a compact and efficient arrangement.
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申请公布号 |
US2003172736(A1) |
申请公布日期 |
2003.09.18 |
申请号 |
US20030332804 |
申请日期 |
2003.05.14 |
申请人 |
BLOUIN ALAIN;PUJOL LIONEL;MONCHAIN JEAN-PIERRE |
发明人 |
BLOUIN ALAIN;PUJOL LIONEL;MONCHAIN JEAN-PIERRE |
分类号 |
G01N29/24;G01N29/34;G01N29/50;(IPC1-7):G01N29/04 |
主分类号 |
G01N29/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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