Method for detecting a reference angular position of a rotary bo

Details Method for detecting a reference angular position of a rotary bo Method for detecting a reference angular position of a rotary bo

1988-03-14

1990-03-06

Gruber, Felix D.

Boots, shoes, and leggings

123414, 123417, G01B 700, F02P 102

Patent

active

049071785

ABSTRACT:
A method of detecting a reference angular position of a rotary body. Two detectable portions are spaced apart from each about the periphery by a predetermined angle in the rotational direction thereof. Two detection signals and produced from two detectors spaced apart from each other by the same angular distance as the detectable portions in the rotational direction of the rotary body in the vicinity of the locus of the detectable portions. It is first detected that at least one of the detectors produces a detection signal and thereafter it is determined that the rotary body takes a reference angular position when both of the detectors produce the detection signals.

REFERENCES:
patent: 4328463 (1982-05-01), Avins
patent: 4379221 (1983-04-01), Avins et al.
patent: 4496936 (1985-01-01), Kramer
patent: 4519362 (1985-05-01), Arakawa et al.
patent: 4678910 (1987-07-01), Hara et al.
patent: 4742332 (1988-05-01), Schroeder et al.
patent: 4796208 (1989-01-01), Kumagai et al.

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