Absolute position detecting device

Details Absolute position detecting device Absolute position detecting device

1991-04-02

1993-02-16

Miller, Stanley D.

Electrical pulse counters, pulse dividers, or shift registers: c

Applications

Position determining

377 6, 377 49, 36416701, G01D 534

Patent

active

051877244

ABSTRACT:
An absolute position detecting device in which the number of revolutions of a drive shaft adapted to drive an object to be controlled is counted with a counter for detecting an absolute position of the object. When a predetermined point on the object returns to an initial position after making one or more revolutions, the drive shaft is returned to an initial rotational angular position. A data rewriting operation is performed to rewrite, as necessary, the count value of the counter into a value obtained by subtracting a count value therefrom which is obtained during the one or more revolutions of the predetermined point.

REFERENCES:
patent: 4511797 (1985-04-01), Pohlig et al.
patent: 4611269 (1986-09-01), Suzuki et al.
patent: 4638732 (1987-01-01), Salazar et al.
patent: 4755729 (1988-07-01), Gotou
patent: 4955305 (1990-09-01), Garnier et al.
patent: 5001732 (1991-03-01), Nomura et al.
patent: 5004981 (1991-04-01), Hashimoto et al.

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