Position controlling device

Details Position controlling device Position controlling device

1981-10-19

1983-09-06

Dobeck, B.

Electricity: motive power systems

Positional servo systems

With particular 'error-detecting' means

318282, 318626, 318467, G05B 106

Patent

active

044031807

ABSTRACT:
A position controlling device including a shielding plate which can be moved by a motor, three pairs of light emitting elements and light receiving elements arranged on both sides of the shielding plate and a motor controlling circuit which can control the normal rotation, reverse rotation and stop of the motor with output signals from the light receiving elements and a foot switch or centering switch simple in the formation and making no misoperation with a noise.

REFERENCES:
patent: 2454832 (1948-11-01), Paulus
patent: 3504259 (1970-03-01), Dalton
patent: 3938016 (1976-02-01), Lange et al.
patent: 4335340 (1982-06-01), Hara et al.

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