Shaft position sensor

Details Shaft position sensor Shaft position sensor

1976-09-29

1977-11-01

Tokar, M.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250237G, 116DIG21, G01D 534

Patent

active

040567222

ABSTRACT:
Shaft position sensing apparatus includes a group of generally parallel vanes extending generally longitudinally of the shaft axis, means for mounting the vanes in that relationship and attaching them to the shaft for rotation with the shaft, a light source providing a beam of light directed transversely of the shaft axis against the vanes, and a light sensor aligned with the light beam and positioned on the opposite side of the shaft axis from the light source for receiving varying amounts of light dependent upon the angular position of the shaft.

REFERENCES:
patent: 3217623 (1965-11-01), Hotchkiss
patent: 3328112 (1967-06-01), Soales et al.
patent: 3361912 (1968-01-01), Lundberg

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