Rotational field sensor

Details Rotational field sensor Rotational field sensor

1976-12-14

1979-03-06

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Rotary

310168, H02A 2114

Patent

active

041432894

ABSTRACT:
A rotational field, such as is produced by the rotation of a motor vehicle alternator rotor, has placed therein a conductor coil which is cut by the lines of force, or flux lines, of the rotating field. The coil is wound upon a magnetic strip which in turn is wrapped around the housing of the alternator. The rotational speed of the alternator rotor will cause corresponding pulses in the coil which are received by a circuit which utilizes the pulse rate to control an output.

REFERENCES:
patent: 697963 (1902-04-01), Apple
patent: 2820915 (1958-01-01), Mathews
patent: 2947168 (1960-08-01), Yang
patent: 3867657 (1975-02-01), Yates et al.
patent: 3906267 (1975-09-01), Coupin et al.

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