Magneto-optical sensors

Optics: measuring and testing – By light interference – Using fiber or waveguide interferometer

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C356S478000, C356S461000

Reexamination Certificate

active

11010530

ABSTRACT:
A system for estimating a parameter selected from the group consisting of a current, a magnetic field, or combinations thereof comprises a resonant frequency tunable magneto-optical loop resonator, wherein the loop resonator comprises a magneto-optical sensing element coupled to an optical waveguide, and wherein the loop resonator is configured for receiving an originating optical signal from a broadband light source and providing a modulated signal indicative of the estimated parameter.

REFERENCES:
patent: 4375680 (1983-03-01), Cahill et al.
patent: 4542338 (1985-09-01), Arditty et al.
patent: 5108183 (1992-04-01), Fling et al.
patent: 5564832 (1996-10-01), Ball et al.
patent: 5644397 (1997-07-01), Blake
patent: 6188811 (2001-02-01), Blake
patent: 6301400 (2001-10-01), Sanders
patent: 6434285 (2002-08-01), Blake et al.
patent: 6542651 (2003-04-01), Bennett
patent: 6670799 (2003-12-01), Bull et al.
patent: 0 783 701 (1998-05-01), None
patent: 1195582 (2002-04-01), None
patent: 1 310 802 (2003-05-01), None
patent: 2001281272 (2001-10-01), None
patent: 2004301769 (2004-10-01), None
patent: WO 94/00768 (1994-01-01), None
“Current Sensing by Mode Coupling in Fibre via the Faraday Effect”, Jan. 31, 1991, Electronics Letters, vol. 27, No. 3, pp. 207-208.
W. Chu, et al “Magneto-Optic Current Sensor Using a Highly-Linear Birefringent Optical Fibre”, May 29, 1992, Fibre Optics Sensor Technology, IEE Colloquium on pp. 7/1-7/3.
A.J. Rogers, et al, “Vibration Immunity for Optical-Fibre Current Measurement”, Jul. 1995, Journal of Lightwave Technology, vol. 13, No. 7, pp. 1371-1377.
J. Song, et al, “A Prototype Clamp-on Magneto—optical Current Transducer for Power System Metering and Relaying”, Oct. 4, 1995, IEEE Transactions on Power Delivery, vol. 10, No. 4.
Y.N. Ning, et al “Recent Progress in optical current sensing techniques”, May 1995, Rev. Sci. Instrum., vol. 66, No. 5, pp. 3097-3111.
A. Kung, et al “Reciprocal and Quasi-Reciprocal Brillouin Fiber-Optic Current Sensors”, Dec. 1996, IEEE Photonics Technology Letters, vol. 8, No. 12.
“Magneto-Optical Fibre Sensors for Electrical Industry: Analysis of Performances”, IEE Proceedings J. Optoelectronics, Institution of Electrical Engineers. Stevenage, GE, vol. 135, No. 5, part J. Oct. 1, 1988, pp. 372-382, XP00027004.
EPO Search Report dated Mar. 14, 2006.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Magneto-optical sensors does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Magneto-optical sensors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magneto-optical sensors will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3897828

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.