Advances In The Laser Speckle Strain Gauge
- 17 February 1987
- proceedings article
- Published by SPIE-Intl Soc Optical Eng
- Vol. 814, 141-149
- https://doi.org/10.1117/12.941687
Abstract
Basic principles and advances of the laser speckle strain gauge are described which optoelectronically detects speckle displacements caused by deformation of a diffuse surface and separates strain by means of differential optical systems. It is a perfectly non-contacting and automatic method. Several problems for practical application of the gauge are presented together with proposals for solving them.Keywords
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