Incremental positioning system

Details Incremental positioning system Incremental positioning system

1977-10-19

1980-02-05

Rubinson, Gene Z.

Electricity: motive power systems

Positional servo systems

With stabilizing features

318640, 250231SE, G05B 501

Patent

active

041874560

ABSTRACT:
A positioning motor is energized by an actuating signal which includes a component proportional to, and another component proportional to the time-derivative of the output signal of a displacement transducer. The displacement transducer includes a plurality of light detectors. A synchronizing structure coupled to the motor moves through the light paths of the light detectors, causing each to generate a respective one of a plurality of mutually phase-shifted first signal components. Signal-processing circuitry derives from the first signal components second signal components which are phase-shifted relative to the first signal components, and combines the first and second signal components to form the transducer output signal.

REFERENCES:
patent: 3811091 (1974-05-01), Ha et al.
patent: 3839665 (1974-10-01), Gabor

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