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Optical Engineering

Advances In The Laser Speckle Strain Gauge
Author(s): Ichirou Yamaguchi
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Paper Abstract

Basic principles and advances of the laser speckle strain gauge are described. The gauge optoelectronically detects speckle displacements caused by deformation of a diffuse surface and separates strain by means of a differential optical system. The method is noncontacting and automatic. Several problems for practical application of the gauge are presented, together with proposals for solving them.

Paper Details

Date Published: 1 March 1988
PDF: 5 pages
Opt. Eng. 27(3) doi: 10.1117/12.7977915
Published in: Optical Engineering Volume 27, Issue 3
Show Author Affiliations
Ichirou Yamaguchi, The Institute of Physical and Chemical Research (Japan)


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