Commutator pulse tachometer

Details Commutator pulse tachometer Commutator pulse tachometer

1989-10-02

1991-07-02

Wallace, Linda J.

Electricity: measuring and testing

Electrical speed measuring

Including speed-related frequency generator

324177, G01P 348

Patent

active

H00009393

ABSTRACT:
A tachometer for measuring speed and armature position of a motor is disced whereby the counter electromotive force present in spikes on the power terminals are shaped, analyzed and displayed as tachometer information. The spikes occur as commutation takes place allowing a coarse angular armature shaft position to also be derived.

REFERENCES:
patent: 3346725 (1967-12-01), Allured et al.
patent: 3558129 (1974-12-01), Liden
patent: 3835326 (1974-09-01), Gerue et al.
patent: 3934200 (1976-01-01), Schoonover et al.
patent: 4000465 (1976-12-01), Sugiyama
patent: 4574237 (1986-04-01), Hatchel et al.
patent: 4788497 (1988-11-01), Kutsumura

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