Fiber optic bending and positioning sensor including a light emi

Details Fiber optic bending and positioning sensor including a light emi Fiber optic bending and positioning sensor including a light emi

1992-07-20

1994-06-14

Berman, Jack I.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

385 13, G02B 610

Patent

active

053212576

ABSTRACT:
A bending, and position, sensor is composed of a fiber optic or light wave guide, for attachment to the member which is to be bent, or displaced. Light is injected at one end and detected at the other end. Bending of the fiber results in light loss through a surface strip or band, along one side of the fiber, this loss being detected. The loss of light detection is used to produce indication of bending or displacement. Two or more light guides can be oriented to give indication of direction of bending, or displacement.

REFERENCES:
patent: 3801389 (1974-04-01), Fujimura
patent: 4880971 (1989-11-01), Danisch
patent: 5005005 (1991-04-01), Brossia et al.

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