Motor speed detector

Details Motor speed detector Motor speed detector

1984-05-25

1986-03-11

Krawczewicz, Stanley T.

Electricity: measuring and testing

Electrical speed measuring

Speed comparing means

324166, 361240, G01P 356

Patent

active

045756775

ABSTRACT:
A motor speed detector employs a magnetic sensor for detecting rotational movement of rotor armature segments of the motor and for producing real tachometer pulses in response to such movement. False tachometer pulses produced by extraneous non-rotor motor components are discriminated against to produce a signal representative of actual motor rotational speed.

REFERENCES:
patent: 3560854 (1971-02-01), Moss et al.
patent: 3611343 (1971-10-01), Schoenbach
patent: 4237517 (1980-12-01), Myers
patent: 4506312 (1985-03-01), Chan et al.

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