1 May 1998 Effect of low-frequency vibrations on speckle interferometry fringes
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Optical Engineering, 37(5), (1998). doi:10.1117/1.601685
Abstract
The effects of low-frequency vibrations on speckle correlation fringes have been investigated. The relatively short capture time of the camera in the low-frequency case may yield usable fringe contrast in spite of vibration. It has been shown that the fringes also shift due to the vibration. The study is in agreement with experimental observations of good-contrast correlation fringes even if the object is not on a vibration- isolated table. Some such experimental observations are also presented.
Chandra S. Vikram, Martin J. Pechersky, "Effect of low-frequency vibrations on speckle interferometry fringes," Optical Engineering 37(5), (1 May 1998). http://dx.doi.org/10.1117/1.601685
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KEYWORDS
Interferometers

Speckle

Fringe analysis

Modulation

Speckle interferometry

Cameras

Bessel functions

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