Detecting Ultrasonic Displacement on Solid Surface by Laser Heterodyne Method

Bai Shiwu; Li Hongwei; Gong Yuliang

doi:10.13374/j.issn1001-053x.1995.06.020

Volume 17 Issue 6

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Bai Shiwu, Li Hongwei, Gong Yuliang. Detecting Ultrasonic Displacement on Solid Surface by Laser Heterodyne Method[J]. Chinese Journal of Engineering, 1995, 17(6): 590-594. doi: 10.13374/j.issn1001-053x.1995.06.020

Citation:

Bai Shiwu, Li Hongwei, Gong Yuliang. Detecting Ultrasonic Displacement on Solid Surface by Laser Heterodyne Method[J]. Chinese Journal of Engineering, 1995, 17(6): 590-594. doi: 10.13374/j.issn1001-053x.1995.06.020

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Detecting Ultrasonic Displacement on Solid Surface by Laser Heterodyne Method

doi: 10.13374/j.issn1001-053x.1995.06.020

Department of Physics, USTB, Beijing 100083, PRC

Received Date: 1994-09-08
Available Online: 2021-09-06

Abstract

Abstract

The principle and way of dectecing ultrasonic displacement of solid surfaces with laser heterodyne and phase-lockedloop to demodulate are described. Ultrasonic displacement of solid surfaces is detected with a laser heterodyne interferometer and a satisfactory conclusion is got.
- ultrasonic measurement,
- laser heterodyne,
- interferometer