Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1990-05-22
1995-12-12
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
367149, 385123, H01J 516
Patent
active
054752167
ABSTRACT:
A fiber optic sensor is formed by providing a first mandrel section having a first longitudinal slot therein, placing a reference fiber within the slot and winding a sensing fiber around the first mandrel. The sensor includes a second mandrel section having a second longitudinal slot therein and a spacer between the first and second mandrel sections. The sensing fiber and the reference fibers are wound around the spacer, and then the reference fiber is placed in the second longitudinal slot. The sensing fiber is wound around the second mandrel section. The sensor may include additional mandrels and spacers to form additional sections. A plurality of sensing coils may be formed on each mandrel section.
REFERENCES:
patent: 3645603 (1972-02-01), Smith
patent: 3990036 (1976-11-01), Savit
patent: 4162397 (1979-07-01), Bucaro et al.
patent: 4166946 (1979-09-01), Chown et al.
patent: 4294513 (1981-10-01), Nelson et al.
patent: 4301543 (1981-11-01), Palmer
patent: 4307933 (1981-12-01), Palmer et al.
patent: 4307937 (1981-12-01), Gordon
patent: 4322829 (1982-03-01), Davis, Jr. et al.
patent: 4360272 (1982-11-01), Schmadel et al.
patent: 4368981 (1983-01-01), Ozeki
patent: 4378143 (1983-03-01), Winzer
patent: 4442350 (1984-04-01), Rashleigh
patent: 4443700 (1984-04-01), Macedo et al.
patent: 4488040 (1984-12-01), Rowe
patent: 4490163 (1984-12-01), Jochem et al.
patent: 4493528 (1985-01-01), Shaw et al.
patent: 4505587 (1985-03-01), Haus et al.
patent: 4525818 (1985-06-01), Cielo et al.
patent: 4530603 (1985-07-01), Shaw et al.
patent: 4534222 (1985-08-01), Finch et al.
patent: 4545253 (1985-10-01), Avicola
patent: 4547869 (1985-10-01), Savit
patent: 4552457 (1985-11-01), Giallorenzi et al.
patent: 4570248 (1986-02-01), Assord
patent: 4588255 (1986-05-01), Tur et al.
patent: 4588296 (1986-05-01), Cahill et al.
patent: 4593385 (1986-06-01), Chamuel
patent: 4606020 (1986-08-01), Ruffin
patent: 4630885 (1986-12-01), Haavisto
patent: 4632551 (1986-12-01), Pavlath
patent: 4633170 (1986-12-01), Burns
patent: 4648082 (1987-03-01), Savit
patent: 4648083 (1987-03-01), Giallorenzi
patent: 4653916 (1987-03-01), Henning et al.
patent: 4671113 (1987-06-01), Carome
patent: 4676583 (1987-06-01), Hicks, Jr.
patent: 4676585 (1987-06-01), Shaw et al.
patent: 4697876 (1987-10-01), Dyott
patent: 4697926 (1987-10-01), Youngquist et al.
patent: 4751690 (1988-06-01), Krueger
patent: 4799752 (1989-01-01), Carome
patent: 4848906 (1989-07-01), Layton
patent: 4939447 (1990-07-01), Bohnert et al.
patent: 4951271 (1990-08-01), Garrett et al.
Brooks et al., "Coherence Multiplexing of Fiber-Optic Interferometric Sensors," Journal of Lightwave Technology, vol. LT-3, No. 5 Oct. 1985, pp. 1062-1071.
Jackson et al., "Optical Fiber Delay-Line Signal Processing," IEEE Transactions on Microwave Theory and Techniques, vol. MTT-33, No. 3, Mar. 1985, pp. 193-210.
Davis, "Fiber Optic Sensors: An Overview," Pro. of SPIE, Fiber Optic and Laser Sensors II, vol. 478, May 1984, pp. 12-18.
Pavlath, "Applications of All Fiber Technology to Sensors," Proc. SPIE, (Int. Soc. Opt. Eng.) vol. 412, 5-7, Apr. 1983, pp. 70-79.
Dandridge et al., "Homodyne Demodulation Scheme for Fiber Optic Sensors Using Phase Generated Carrier," IEEE Journal of Quantum Electronics, vol. QE-18, No. 10, Oct. 1982, pp. 1647-1653.
Kersey et al., "Demodulating Scheme Fibre Interferometric Sensors Employing Laser Frequency Switching," Electronics Letters, vol. 19, No. 3, Feb. 13, 1983, pp. 102-103.
Tur et al., "Fiber-optic Signal Processor with Applications to Matrix-vector Multiplication and Lattice Filtering," Optics Letters, vol. 7, No. 9, Sep. 1982, pp. 463-465.
Digonnet et al., "Analysis of a Tunable Single Mode Optical Fiber Coupler," IEEE Journal of Quantum Electronics, vol. AE-18, No. 4, Apr. 1982, pp. 746-754.
Giallorenzi et al., "Optical Fiber Sensor Technology," IEEE Transactions on Microwave Theory and Techniques, vol. MTT-30, No. 4, Apr. 1982, pp. 472-511.
Davis, "An Introduction to Fiber Optic Sensors," Laser Focus/Fiber Optic Tech., vol. 18, No. 2, Feb., 1982, pp. 112-118.
Jarzynski et al., "Frequency Response of Interferometric Fiber-optic Coil Hydrophones," Journal Acoust. Soc. Am., vol. 69, No. 6, Jun., 1981, pp. 1799-1808.
Nelson et al., "Passive Multiplexing Techniques for Fiber Optic Sensor Systems," I.F.O.C., Mar., 1981, pp. 27-30.
Nelson et al., "Passive Multiplexing Systems For Optic Sensors," Applied Optics, vol. 19, No. 17, Sep. 1980, pp. 2917-2920.
Sheem et al., "Wavelength Monitoring of Single-mode Diode Laser Using Guided Wave Interferometer," Optics Letters, May 1980, vol. 5, No. 5, pp. 179-181.
Bergh et al., "Single-Mode Fibre Optic Directional Coupler," Mar. 27, 1980, Electronics Letters, vol. 16, No. 7, pp. 260-261.
Danver Bruce A.
Lastofka Jeffrey D.
Le Que T.
Nelms David C.
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