基于传统的迈克耳孙干涉系统，设计了一种测量纳秒脉冲激光加载下非镜面金属膜表面波速度的技术。为得到特征明显的表面波信号，在非镜面钽膜前放置了会聚透镜，并且在参考光路使用了衰减器保证两束参与干涉的光满足光强匹配。从干涉信号强度随时间的变化中，可以观察到明显的表面波特征信号。通过测量不同距离探测点处表面波到达的时间，并进行线性拟合，可以得到常压下钽膜中表面波的传播速度，并以此速度为基础计算了常压下钽膜的横波速度，其结果与已报道的实验结果相当。

Under the loading of nanosecond laser pulse, a surface wave ultrasonic velocity measurement technology for non-specular surface metal sample based on Michelson interferometer system is developed. In order to obtain characterful singal of surface wave, the convergent reflection signal light from non-specular surface of tantalum slice interferes with attenuating reference light. In the interference intensity change history, distinct characteristic signal of surface wave can be inspected. Through the result of arrival time of different detection points and linear fitting method, surface wave of tantalum is successfully measured. A result of transverse wave velocity comparable to the reported one is obtained based on the measured surface wave ultrasonic velocity.