Optical fiber sensors with full common-mode compensation and mea

Details Optical fiber sensors with full common-mode compensation and mea Optical fiber sensors with full common-mode compensation and mea

1989-01-17

1991-02-05

Turner, Samuel

Optics: measuring and testing

By particle light scattering

With photocell detection

356346, 356352, 25022727, G01B 902

Patent

active

049899791

ABSTRACT:
Optical interferometric sensors exhibiting enhanced measurand sensitivity and complete common-mode compensation. The sensors add two additional light couplers and two optical paths with predetermined path lengths to known optical sensors such as the Mach-Zehnder, Recirculating Delay Line, Michelson-Morley, and Fabry-Perot sensors to produce sensors which exhibit complete common-mode compensation thereby greatly improving measured signal-to-noise ratio. An electronic feedback circuit can be employed in any of the sensors resulting in enhanced measured sensitivity.

REFERENCES:
patent: 4162397 (1979-07-01), Bucaro et al.
patent: 4201446 (1980-05-01), Geddes et al.
patent: 4235113 (1980-11-01), Carome
patent: 4322829 (1982-03-01), Davis, Jr. et al.
patent: 4329058 (1990-05-01), James et al.
patent: 4360247 (1982-11-01), Beasley
patent: 4405198 (1983-09-01), Taylor
patent: 4418981 (1983-12-01), Stowe
patent: 4420258 (1983-12-01), Burns et al.
patent: 4461536 (1984-07-01), Shaw et al.
patent: 4495411 (1985-01-01), Rashleigh
patent: 4530603 (1985-07-01), Shaw et al.
patent: 4581530 (1986-04-01), Brogardh et al.
patent: 4627728 (1986-12-01), Willson
patent: 4859060 (1989-08-01), Katagiri et al.
Jarzynski, et al., "Magnetic Field Sensitivity of an Optical Fiber with Magnetostrictive Jacket," Applied Optics, vol. 19, No. 22, pp. 3746-3748 (Nov. 15, 1980).
Koo, et al., "Characteristics of Fiber-Optic Magnetic-Field Sensors Employing Metallic Glasses," Optics Letters, vol. 7, No. 7, pp. 334-336 (Jul. 1982).
Bergh, et al., "An Overview of Fiber-Optic Gyroscopes," Journal of Lightwave Technology, vol. LT-2, No. 2, pp. 91-107 (Apr. 1984).
Koo, et al., "Detection Scheme in a Fiber-Optic Magnetic-Field Sensor Free From Ambiguity Due to Material Magnetic Hysteresis," Optics Letters, vol. 9, No. 6, pp. 257-259 (Jun. 1984).
Sixt, et al., "Passive Fiber Fabry-Perot Filter for Intensity-Modulated Sensors Referencing," Journal of Lightwave Technology, vol. LT-4, No. 7, pp. 926-932 (Jul. 1986).
Hofler, et al., "Thermal Noise in a Fiber Optic Sensor," J. Acoust. Soc. Am. 84(2), pp. 471-475 (Aug. 1988).

Affiliated with

Also associated with

Rating

Optical fiber sensors with full common-mode compensation and mea does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical fiber sensors with full common-mode compensation and mea, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical fiber sensors with full common-mode compensation and mea will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-7305