Optics: measuring and testing – By light interference – Using fiber or waveguide interferometer
Reexamination Certificate
2006-05-30
2006-05-30
Toatley, Jr., Gregory J. (Department: 2877)
Optics: measuring and testing
By light interference
Using fiber or waveguide interferometer
Reexamination Certificate
active
07054011
ABSTRACT:
A fiber optic sensor has a hollow tube bonded to the endface of an optical fiber, and a diaphragm bonded to the hollow tube. The fiber endface and diaphragm comprise an etalon cavity. The length of the etalon cavity changes when applied pressure or acceleration flexes the diaphragm. The entire structure can be made of fused silica. The fiber, tube, and diaphragm can be bonded with a fusion splice. The present sensor is particularly well suited for measuring pressure or acceleration in high temperature, high pressure and corrosive environments (e.g., oil well downholes and jet engines). The present sensors are also suitable for use in biological and medical applications.
REFERENCES:
patent: 4678904 (1987-07-01), Saaski et al.
patent: 4848999 (1989-07-01), Taylor
patent: 5528367 (1996-06-01), Putnam et al.
patent: 6281976 (2001-08-01), Taylor et al.
patent: 2002/0159671 (2002-10-01), Boyd et al.
Chen et al.; “Deep Wet Etching on Fused Silica Material for Fiber Optic Sensors”; Proceedings of SPIE—vol. 5342 Micromachining and Microfabrication Process Technology IX; Jan. 2004, pp. 128-136.
Wang Anbo
Wang Xingwei
Xu Juncheng
Zhu Yizheng
Lyons Michael A.
Toatley , Jr. Gregory J.
Virginia Tech Intellectual Properties Inc.
Whitham Curtis Christofferson & Cook PC
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