1 August 1992 Four-beam two-focus differential laser velocimetry system
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Abstract
A four-beam two-focus differential laser velocimetry system with an acousto-optic modulator, which is suitable for measuring solid deformation or movement at ultralow speed, is presented. The signal-to-noise ratio is good enough for phase discrimination, the frequency response range is 0 to 20 kHz, and the measurable velocity range is 0.001 m/s to 300 mm/s.
Chunyong Yin, Chunyong Yin, Jihua Guo, Jihua Guo, Zhengqi Xu, Zhengqi Xu, Yunfeng Song, Yunfeng Song, } "Four-beam two-focus differential laser velocimetry system," Optical Engineering 31(8), (1 August 1992). https://doi.org/10.1117/12.58727 . Submission:
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