Method of controlling the rotation of a rotary body and apparatu

Details Method of controlling the rotation of a rotary body and apparatu Method of controlling the rotation of a rotary body and apparatu

1976-02-20

1977-12-13

Pellinen, A. D.

Electricity: electrical systems and devices

Electrical speed signal processing systems

With speed comparison

G05D 1362

Patent

active

040633047

ABSTRACT:
Method and apparatus of controlling the revolving speed of a rotary body to be rotated at the predetermined number of revolution corresponding to the reference or first signal F.sub.1. The rotary body equipped with an alternating current generator which generates a frequency signal or third signal F.sub.3 in proportion to the number of revolution thereof. During operation, the signal F.sub.3 being compared with the signal F.sub.1, if the deviation of the signal F.sub.3 from the signal F.sub.1 is within tolerance, a second variable signal F.sub.2 is swept to coincide the same with the signal F.sub.3 and further to coincide with the first signal F.sub.1 while maintaining the coincidence of the second and third signals thereby to resume the number of revolution of the rotary body to that corresponding to the reference signal.

REFERENCES:
patent: 3983954 (1976-10-01), Noddings et al.

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