Optical fiber position sensor

Details Optical fiber position sensor Optical fiber position sensor

G - Physics

08

C

340/136, 88/97.6

G08C 21/00 (2006.01) G01D 5/353 (2006.01)

Patent

CA 1171495

52AY-1212 OPTICAL FIBER POSITION SENSOR ABSTRACT OF THE DISCLOSURE An optical fiber position sensor includes an optical fiber cable wound in the shape of a single layer, tightly wound coil, the coil being secured to a first member. A second member, which is linearly movable with respect to the first member, has fixed thereto an LED which is aimed at the coil such that radiation being emitted from the LED is injected approximately tangentially into the coil. Radiation being transmitted through the coil is attenuated as a function of the distance that it travels therethrough and as a result, radiation exiting the coil through the terminations is representative of the location of the movable member with respect to the fixed member.

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