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Conferences > ACPC > 2016 > AF2A > AF2A.8

Phase modulated self-mixing micron vibration measurement using Hilbert Transform

Yufeng Tao, Ming Wang, and Wei Xia

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Abstract

Self-mixing interferometer employs resonant phase modulator operating at 12MHz to non-contact measure micron ultrasonic vibration with accuracy better than λ/40. Hilbert transform extracts phase-shift with automatic direction distinguishing. Experimental results are compared to LDV.

© 2016 Optical Society of America

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