Method and device for measuring rotary speed

Details Method and device for measuring rotary speed Method and device for measuring rotary speed

1989-03-30

1991-08-20

Shoop, Jr., William M.

Electricity: motor control systems

Closed loop speed control system for dc motor with commutator

Armature control by digital or combined analog and digital...

388814, 388815, H02P 500

Patent

active

050420801

ABSTRACT:
Method of measuring the rotary speed of an electromagnetically actuated rotating device having at least one winding carrying a current, which comprises analyzing the frequency of a voltage corresponding to an alternating component of the current, and a device for performing the method.

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patent: 4603284 (1986-07-01), Perzley
patent: 4622500 (1986-11-01), Budelma, Jr.
patent: 4626754 (1986-12-01), Habermann et al.
patent: 4675585 (1987-06-01), Krueger et al.
patent: 4731569 (1988-03-01), Bohn
patent: 4841207 (1989-06-01), Cheyno

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