Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1978-09-05
1981-03-24
Duggan, Donovan F.
Electrical generator or motor structure
Dynamoelectric
Rotary
310168, H02K 2144
Patent
active
042582792
ABSTRACT:
An improved magnetic sensor assembly comprising a permanent magnet recessed within a pole extension magnet with a pick-up coil disposed around a portion of the pole extension magnet, each of the permanent and pole extension magnets having one end thereof substantially coplanar. The sensor assembly may be enclosed within a magnetic shield having an access opening providing access to the sensing region of the sensor assembly.
REFERENCES:
patent: 2816240 (1957-12-01), Zimmerman
patent: 3041483 (1962-06-01), Ebbinghaus et al.
patent: 3252024 (1966-05-01), Loudon
patent: 3876927 (1975-04-01), Gee et al.
patent: 4011478 (1977-03-01), Reenstra
Coburn Orin W.
Duggan Donovan F.
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