论文部分内容阅读
该装置是利用光导纤维使光束分裂来进行非接触式检验,测量激光照射到被测表面上产生的声信号的波振幅,通过聚焦的光束在被测表面上形成很小的光斑,对表面进行扫描,这就消除了用大的机械传感器时所产生的信号积累影响。
The device is the use of optical fiber to split the beam to conduct a non-contact test to measure the laser beam emitted to the measured surface acoustic signal generated by the amplitude of the beam by focusing on the measured surface to form a small spot on the surface Scanning eliminates the signal buildup on large mechanical sensors.