Speed detector for use with miniature DC motor

Details Speed detector for use with miniature DC motor Speed detector for use with miniature DC motor

1974-10-15

1976-06-29

Corbin, John K.

Electricity: measuring and testing

Electrical speed measuring

Including speed-related frequency generator

310168, 310113, G01P 348, H02K 4714

Patent

active

039672000

ABSTRACT:
A speed detector for use with a miniature DC motor is disclosed wherein a device such as coils or Hall generators for detecting the magnitude and direction of leakage flux are placed in opposed relationship with at least one pair of field poles of the DC motor, so that an output signal having a frequency proportional to an integral multiple of the number of slots of the armature may be derived.

REFERENCES:
patent: 2814745 (1957-11-01), Sinclair, Jr.
patent: 3466477 (1969-09-01), Newill
patent: 3504208 (1970-03-01), Rivers

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