Abstract

A new, simple low-cost method is presented for real-time measurement of arbitrary vibrations using the shadow moire technique. It is shown, by comparing with holographic measurements, that amplitudes as small as 100 nm can be accurately measured. The new method provides easy calibration for many other vibration measurement techniques.

© 1986 Optical Society of America

Time-averaged shadow-moiré method for studying vibrations

Y. Y. Hung, C. Y. Liang, J. D. Hovanesian, and A. J. Durelli
Appl. Opt. 16(6) 1717-1719 (1977)

Determination of the vibrating phase by a time-averaged shadow moire method

Jun-ichiroh Fujimoto
Appl. Opt. 21(23) 4373-4376 (1982)

Diffraction effects and special advantages in electronic heterodyne moire deflectometry

Josef Stricker
Appl. Opt. 25(6) 895-902 (1986)

Real-time moire vibration analysis of diffusive objects

O. Kafri, Y. B. Band, T. Chin, D. F. Heller, and J. C. Walling
Appl. Opt. 24(2) 240-242 (1985)

Automatic calibration method for phase shift shadow moire interferometry

Joris J. J. Dirckx and W. F. Decraemer
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