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Real-time dual-channel speckle interferometry based on an improved dual-observation configuration with spatial phase-shifting

Guoqing Gu,Yun Pan,Chengchun Qiu,Chengjie Zhu

Measurement（2021）

Cited 4|Views4
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Abstract
•Dual-channel speckle interferometry is developed for multi-parameter measurements.•Spatial carrier phase-shifting technique is used for real-time phase retrieval.•Dual-channel speckle interferometry is proved by dynamic measurement applications.
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Key words
Simultaneous displacement and slope measurements,Dual-channel speckle interferometry,Dual-observation configuration,Spatial carrier phase-shifting
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