Fiber optic sensor

Details Fiber optic sensor Fiber optic sensor

2007-10-23

2007-10-23

Toatley, Jr., Gregory J. (Department: 2877)

Optics: measuring and testing

By light interference

Using fiber or waveguide interferometer

C385S013000

Reexamination Certificate

active

10906528

ABSTRACT:
3-Mirror fiber optic sensor for simultaneous measurement of dual parameters such as hydrogen concentration and temperature, is formed from 2 optical leads comprising 3 reflective surfaces, and defining 2 optical cavities. The effect of temperature on each of the cavities and the effect of hydrogen, for example, on the one of the cavities, produces phase shifts in the reflected lights, and interference patterns from which the parameters may be detected.

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patent: 6056436 (2000-05-01), Sirkis et al.
patent: 6985235 (2006-01-01), Bao et al.
patent: 2005/0046862 (2005-03-01), Melnyk

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