Ultrasonic wave excited in medium by laser can be used as a new method of ultrasonic measure and nondestructive testing.
在固体中利用激光产生超声波，可作为超声测量和材料无损检测的一种新方法。
The principle and method of measuring the acoustic speed CVD diamond film with piezoelectric film detecting laser ultrasonic system are presented.
本文介绍了压电薄膜检测的激光超声系统对CVD金刚石膜声速测量的原理及方法。
In order to effectively determine the residual-stress profile of an aluminum alloy, the measuring method was studied by the laser ultrasonic technique.
为了有效检测铝合金材料上的残余应力分布，研究了用激光超声技术来检测铝合金材料上的残余应力分布的方法。
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