Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1981-05-18
1983-05-17
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
250231SE, 250551, 350 9615, G02B 514
Patent
active
043842038
ABSTRACT:
An optical fiber position sensor wherein a first member is rotationally movable with respect to a second member. A generally rod-shaped fiber optic cable is provided having two elongated portions in close axial alignment. The interface surfaces of the two portions have equal face angles of approximately 30-35 degrees from the longitudinal axis. One of the cable portions is secured to the first member and the other cable portion is secured to the second member. When the interface surfaces are parallel, most of the radiation received into the first cable portion from a source of electromagnetic radiation, an LED, is transmitted through to the second cable portion, and when the interface surfaces are non-parallel as a function of the rotation of one of the members with respect to the other, radiation will be reflected at the interface surfaces of the second cable portion in varying amounts as a function of angular displacement of the cable portion relative to the first cable portion, such resulting in attentuation of radiation being transmitted through the cable, that radiation being representative of the location of the movable member with respect to the fixed member.
REFERENCES:
patent: 4056722 (1977-11-01), Ray
patent: 4060725 (1977-11-01), Hoshika
patent: 4165496 (1979-08-01), Di Domenico, Jr. et al.
patent: 4250380 (1981-02-01), Iyeta
patent: 4303300 (1981-12-01), Pressiat et al.
Bahr Arthur E.
Blumenfeld I. David
Brophy J.
General Electric Company
Nelms David C.
LandOfFree
Optical fiber angle position sensor 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 angle position sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical fiber angle position sensor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1568350