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

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  • 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.
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