Interferometric fiber optic proximity switch

Details Interferometric fiber optic proximity switch Interferometric fiber optic proximity switch

1990-06-04

1991-10-22

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

25022721, 356345, 324244, H01J 516, G01R 3302, G01B 902

Patent

active

050597833

ABSTRACT:
A proximity switch for use with a single optical source of energy. A passive fiber-optic magnetometer includes a Michelson type magnetometer in which one of the legs is sensitized to magnetic fields. A fiber-optic data link connects the magnetometer to the single optical source of energy and to a photo detector. A permanent magnet positioned adjacent the magnetometer causes constructive interference which is detected by the photo detector.

REFERENCES:
patent: 4356448 (1982-10-01), Brogardh et al.
patent: 4376248 (1983-03-01), Giallorenzi et al.
patent: 4433291 (1984-02-01), Yariv et al.
patent: 4450406 (1984-05-01), Bobb
patent: 4471219 (1984-09-01), Giallorenzi
patent: 4516073 (1985-05-01), Doriath et al.
patent: 4600885 (1986-07-01), Koo et al.
patent: 4627728 (1986-12-01), Willson
patent: 4767210 (1988-08-01), Kashyap
patent: 4789240 (1988-12-01), Bush
patent: 4796966 (1989-01-01), Kovaleski et al.
patent: 4800266 (1989-01-01), Poorman
patent: 4816669 (1989-03-01), Andersen
patent: 4881813 (1989-11-01), Koo et al.
patent: 4899042 (1990-02-01), Falk et al.

Affiliated with

Also associated with

Rating

Interferometric fiber optic proximity switch does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Interferometric fiber optic proximity switch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interferometric fiber optic proximity switch will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-110066