Fiber-optic acceleration sensor based on the photoelastic effect
- 1 June 1983
- journal article
- Published by Optica Publishing Group in Applied Optics
- Vol. 22 (11) , 1771-1774
- https://doi.org/10.1364/ao.22.001771
Abstract
A novel type of fiber-optic acceleration sensor was constructed of a photoelastic substance such as isotropic epoxy resin, DAP (diallylphthalate polymer), or LiNbO3 single crystal. By a weight placed on the upper surface of the rectangular rod of photoelastic material, stress-induced birefringence is brought about in response to vibrational acceleration. With this sensor, acceleration from 10−3 to 30 G was accurately measured in the frequency range from dc to 3 kHz.Keywords
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