System for determining the relative angular positions of the rot

Details System for determining the relative angular positions of the rot System for determining the relative angular positions of the rot

1976-10-05

1979-01-16

Dobeck, B.

Electricity: motive power systems

Plural, diverse or diversely controlled electric motors

Synchronizing or phasing control

318 41, 318 44, 318 59, G05B 1928

Patent

active

041351185

ABSTRACT:
A system for determining the relative angular positions of two magnetic-p rotors of respective synchronously driven (same speed) synchronous motors operated from a common frequency generator applying the driving frequency to the motors. Each rotor is provided with an optoelectronic device generating an electronic pulse for each revolution of the rotor. The pulse of one optoelectronic device is applied to the start input of a start-stop counter. The pulse from the other device is applied to the stop input of the counter and the pulse-counting input receives its signals from a frequency multiplier connected to the frequency generator.

REFERENCES:
patent: 3675098 (1972-07-01), Heiberger
patent: 3803464 (1974-04-01), Kuroyanagi
patent: 3833843 (1974-09-01), Bossons
patent: 3997828 (1976-12-01), Bottcher et al.

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