Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1988-06-02
1990-01-30
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
250231P, G01D 534, G01L 900
Patent
active
048975419
ABSTRACT:
To detect a physical parameter, a resonator is connected to a body which changes in dimension when subjected to the parameter. Thus, when the body changes in dimension in response to the parameter, the resonance frequency of the resonator is modulated thereby. Such modulations are detected optically to detect and measure the parameter. In the preferred embodiment, the resonator transmits light and light is applied to the resonator so that the light supplied is transmitted through the resonator and so that the modulations of the resonance frequency also modulates the intensity of the light transmitted by the resonator. The modulations of the intensity of the light transmitted by the resonator is detected to detect the parameter.
REFERENCES:
patent: 3238789 (1961-07-01), Erdley
patent: 3249105 (1966-05-01), Polanyi
patent: 3561253 (1971-02-01), Doorman
patent: 3580082 (1981-05-01), Strack
patent: 3683213 (1972-08-01), Staudte
patent: 3715911 (1973-02-01), Chuan
patent: 3808557 (1974-04-01), Smiley
patent: 3950987 (1987-04-01), Slezinger et al.
patent: 3969640 (1976-07-01), Staudte
patent: 3969641 (1976-07-01), Oguchi et al.
patent: 4111036 (1978-09-01), Frechette et al.
patent: 4160600 (1979-07-01), Luke
patent: 4193010 (1980-03-01), Kompanek
patent: 4210029 (1980-07-01), Porter
patent: 4215570 (1980-08-01), EerNisse et al.
patent: 4270050 (1981-05-01), Brogardh
patent: 4275296 (1981-06-01), Adolfsson
patent: 4281245 (1981-07-01), Brogardh et al.
patent: 4286468 (1981-09-01), Altman
patent: 4320475 (1982-03-01), Leclerc et al.
patent: 4322978 (1982-04-01), Fromm
patent: 4322979 (1982-04-01), Fromm
patent: 4345475 (1982-08-01), Bickel
patent: 4345482 (1982-08-01), Adolfsson et al.
patent: 4353259 (1982-10-01), Schneider, Jr.
patent: 4362961 (1982-12-01), Gerber
patent: 4368645 (1983-01-01), Glenn et al.
patent: 4372173 (1983-02-01), EerNisse et al.
patent: 4376390 (1983-03-01), Rines
patent: 4377765 (1983-03-01), Kogure et al.
patent: 4379226 (1983-04-01), Sichling et al.
patent: 4379244 (1983-04-01), Dinger et al.
patent: 4382204 (1983-05-01), Yoda
patent: 4384232 (1983-05-01), Debely
patent: 4398115 (1983-08-01), Gagnepain et al.
patent: 4439705 (1984-03-01), Corbett
patent: 4448546 (1984-05-01), Paros
patent: 4459042 (1984-07-01), Paros
patent: 4547729 (1985-10-01), Adolfsson et al.
patent: 4567771 (1986-02-01), Nelson et al.
patent: 4572670 (1986-02-01), Fredrickson
patent: 4678904 (1987-07-01), Saaski et al.
patent: 4678905 (1987-07-01), Phillips
"Chemical Sensors Based on Fiber Optics", W. Rudolf Seitz, Analytical Chemistry, vol. 56, No. 1, Jan. 1984.
"Biosensors: A New Analytical Technology", Pepi Ross, Bio Techniques, Nov./Dec. 1983.
"Principles of Optical Fibre Sensors and Instrumentation," A. L. Harmer, Measurement and Control, vol. 15, Apr. 1982.
"Tilting-Mirror Fiber-Optic Accelerometer," Richard A. Soref and Donald H. McMahon, Applied Optics, vol. 23, No. 3, Feb. 1, 1984.
Ultra Miniature Low Frequency Quartz Crystals and Oscillators, Technical Data & Short Form Catalog, Statek Corporation, Data Sheet F335.
"Force Sensor Using Double-Ended Tuning Fork Quarts Crystals," Shih S. Chuang, Statek Corporation, Orange, CA 1983 IEEE.
"Tuning Fork Resonator Sensors," E. P. Ernisse and R. B. Wiggins, Sensors, pp. 6-9, Mar. 1986.
Statek TS-2 Data Sheet.
"Light Light Choppers," Bulova Watch Company, Inc., Electronics Division, Reprint from Bulova Watch Co.
"Optical Scanner," by F. Dostal, Optical Spectra--Mar./Apr., 1969.
Bulova-American Time Products Catalog, Light Chopper Type L40 and L42.
"Portable Piezoelectric Crystal Detector for Field Monitoring of Environmental Pollutants, " by Mat H. Ho and George G. Guilbault in Anal. Chem., vol. 55, pp. 1830-1832, 1983.
Allen Stephone B.
Luxtron Corporation
Nelms David C.
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