Photoelectric position sensor of step motor

Details Photoelectric position sensor of step motor Photoelectric position sensor of step motor

1976-12-27

1978-05-09

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 46, 310 68B, 318254, H02K 3700

Patent

active

040889084

ABSTRACT:
In a photoelectric position sensor of a step motor a mirror pyramid is placed across the light beam from a light source and secured on the shaft of the step motor. The faces of the mirror pyramid reflect the light beam to a faceted mirror reflector. The light beam is reflected from a respective facet of the mirror reflector and transferred to a photoelectric receiver by means of light guides. The design of the sensor ensures high resolution and a small moment of load inertia produced by the mirror pyramid on the shaft of the step motor.

REFERENCES:
patent: 2919358 (1959-12-01), Marrison
patent: 3096467 (1963-07-01), Angus et al.
patent: 3612926 (1971-10-01), Zizelman

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