Optical sensor

Communications – electrical: acoustic wave systems and devices – Signal transducers – Underwater type

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Details

367163, 73 185, H04R 102

Patent

active

061607622

ABSTRACT:
An element that is sensitive to a pressure or acceleration signal comprises an optical element capable of changing its index of refraction and/or path length in response to a time varying pressure or in response to acceleration and a pliant mounting member supporting the optical element. The mounting member changes its geometrical configuration in response to the time varying pressure or acceleration. Some embodiments of the invention use a mechanical amplifier to achieve the needed sensitivity.

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patent: 6049511 (2000-04-01), Erath

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