Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1983-12-27
1986-03-18
Westin, Edward P.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
73800, 7386238, 350 9629, G01L 124
Patent
active
045771006
ABSTRACT:
An integrated optical pressure transducer having a diaphragm fabricated from a low-loss glass is positioned at the location where pressure changes are to be measured. An optical waveguide loop formed on one surface of the diaphragm acts as a ring cavity in which the difference between the resonating frequencies varies with pressure but not with temperature. Light energy is coupled into the waveguide loop from an optical source through a tangentially located input waveguide. An output waveguide, also tangentially located, couples light energy from the waveguide loop to a broadband detector so that the changes in frequency spectrum of the resonating frequencies within the waveguide loop can be monitored.
REFERENCES:
patent: 3517560 (1970-06-01), Jacobs et al.
patent: 3743962 (1973-07-01), Rosenberg
patent: 3786681 (1974-01-01), Kiehn
patent: 3949320 (1976-04-01), Castleberry et al.
patent: 4295738 (1981-10-01), Meltz et al.
patent: 4466295 (1984-08-01), Wesson
patent: 4519252 (1985-05-01), McMahon
Clifford G. Walker, "Photoelastic and Electro-Optic Sensors", published in vol. 412, Fiber Optic and Laser Sensors, Proceedings of SPIE, (1983).
Allen, Jr. Louis B.
Ferrar Carl M.
Meltz Gerald
Lange Richard P.
Sabath Robert P.
United Technologies Corporation
Westin Edward P.
LandOfFree
Temperature compensated optical pressure sensor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Temperature compensated optical pressure sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Temperature compensated optical pressure sensor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2307925