Advances In The Laser Speckle Strain Gauge
- 1 March 1988
- journal article
- Published by SPIE-Intl Soc Optical Eng in Optical Engineering
- Vol. 27 (3) , 273214-273214-
- https://doi.org/10.1117/12.7977915
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.Keywords
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