发明名称 |
Method and apparatus for producing pulse-shaped acoustic waves on a workpiece surface |
摘要 |
A method and apparatus for producing on the surface of a workpiece free of contact with a source of energy a pulse shaped ultrasonic shock wave comprise the use of laser means. A plurality of strip-shaped equidistantly spaced surface portions of the workpiece are pulsed with coherent light from the laser means in time delayed sequence. The angle of propagation of the ultrasonic wave is determined by the center-to-center distance between the strip-shaped surface portions illuminated with coherent light, the time delay between the light pulses and the velocity of propagation of the ultrasonic wave in the workpiece.
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申请公布号 |
US4144767(A) |
申请公布日期 |
1979.03.20 |
申请号 |
US19770856338 |
申请日期 |
1977.12.01 |
申请人 |
KRAUTKRAMER-BRANSON, INC. |
发明人 |
KAULE, WALTER;PRIMBSCH, ERIK |
分类号 |
G01N29/04;G01N29/00;G01N29/24;G10K15/04 |
主分类号 |
G01N29/04 |
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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