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High sensitivity tilt measurement by speckle shear interferometry

โœ Scribed by Mohanty, R. K. ;Joenathan, C. ;Sirohi, R. S.

Book ID
115334278
Publisher
The Optical Society
Year
1986
Tongue
English
Weight
455 KB
Volume
25
Category
Article
ISSN
1559-128X

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A time-average electronic speckle shearing interferometer (ESSI) has been used for modal damping measurement. This is eected by a new fringe enhancement technique. The damping factor of a cantilever measured by using this technique agrees well with the value measured by using the accelerometer metho