Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1981-12-22
1984-01-10
Miller, J. D.
Electrical generator or motor structure
Dynamoelectric
Rotary
310188, 310269, 324173, H02K 1100
Patent
active
044255225
ABSTRACT:
A rotational speed indication signal generator comprises a magnetic circuit and a plurality of generating coils radially arranged with respect to the rotary shaft of a rotor. Each of the generating coils is wound around a radial projection of a circular disk made of a magnetic material so that the axis of the generating coils is normal to the rotary shaft. The generating coils are electrically connected in series in such a manner that a noise voltage induced across one coil caused by external flux has opposite poloraity to that of a noise voltage induced across another coil positioned opposite with respect to the rotary shaft. The electrical connection of the generating coils has a given circular direction while a lead wire connected to the last coil in the series connection has a circular direction opposite to the direction of the series connection.
REFERENCES:
patent: 3339097 (1967-08-01), Dunn
patent: 3777196 (1973-12-01), Field
patent: 3967200 (1976-06-01), Tetsugu et al.
patent: 4117519 (1978-09-01), Shioyama et al.
patent: 4125792 (1978-11-01), Schmider
patent: 4366405 (1982-12-01), Schmider
Miller J. D.
Rebsch D. L.
Victor Company of Japan , Limited
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