Sensor device for measuring a physical parameter

Details Sensor device for measuring a physical parameter Sensor device for measuring a physical parameter

1981-03-09

1984-01-24

McGraw, Vincent P.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250231R, 350 9633, 374205, G01D 530

Patent

active

044278810

ABSTRACT:
A sensor for measuring a physical parameter at a first location which is remote from a second location. The sensor has a plurality of light transmitting fibers each having an input end for receiving light from a source and an output end for emitting the received light to a light detector and a lens for focusing light from the source on one of the input ends of the light transmitting fibers. The lens is displaced to project light to a specific one of the input ends of the fibers in accordance with the value of the physical parameter to be measured.

REFERENCES:
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patent: 3415712 (1968-12-01), Barker, Jr.
patent: 3650187 (1972-03-01), Judin
patent: 4087684 (1978-05-01), Mott
patent: 4204742 (1980-05-01), Johnson et al.
patent: 4239963 (1980-12-01), August et al.
patent: 4303302 (1981-12-01), Ramsey et al.
patent: 4304630 (1981-12-01), Tanner
patent: 4359637 (1982-11-01), Perren
K. A. James, W. H. Quick and V. H. Strahan, "Fiber Optics: The Way to True Digital Sensors", Control Engineering, Feb. 1979, pp. 30-33.

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