AN ACCURATE NONCONTACTING LASER-BASED SYSTEM FOR SURFACE-WAVE VELOCITY-MEASUREMENT

被引：12

作者：

SOMEKH, MG

LIU, M

HO, HP

SEE, CW

机构：

[1] Dept. of Electr. and Electron. Eng., Nottingham Univ.

来源：

MEASUREMENT SCIENCE AND TECHNOLOGY | 1995年 / 6卷 / 09期

关键词：

D O I：

10.1088/0957-0233/6/9/013

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper describes the development of a new optical system for accurate measurement of surface wave velocity and attenuation. A mode-locked Q-switch laser generates a Rayleigh wave tone burst which is detected with a two beam interferometer system. The resulting signals are then processed using a simple cross correlation algorithm. Results demonstrating the velocity resolution of the system are presented on both ceramic and metallic samples.

引用

页码：1329 / 1337

页数：9

共 9 条

[1] PRECISION LASER-ULTRASONIC VELOCITY-MEASUREMENT AND ELASTIC-CONSTANT DETERMINATION [J].