Optical rotation sensor
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United States of America Patent
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-
Jun 7, 1994
Grant Date -
N/A
app pub date -
Dec 7, 1992
filing date -
Dec 7, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In a preferred embodiment, an optical rotation sensor for a rotating member, the optical rotation sensor including: at least one reflective element disposed on the surface of the rotating member; first light transmission means to transmit light from a light source, disposed at the proximal end of the first light transmission means remote from the rotating member, to illuminate the surface of the rotating member at the distal end of the first light transmission means; and second light transmission means to transmit from the distal end of the second light transmission means to a first photodetector, disposed at the proximal end of the second light transmission means remote from the rotating member, light reflected from the at least one reflective element as the at least one reflective element passes the distal end of the second light transmission means as the rotating member rotates.
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