Electricity: motive power systems – Positional servo systems – With particular 'error-detecting' means
Patent
1989-04-20
1990-05-22
Miska, Vit W.
Electricity: motive power systems
Positional servo systems
With particular 'error-detecting' means
318138, 318254, 318439, 310160, 310171, 310111, H02K 3900
Patent
active
049280465
ABSTRACT:
A multiple rotational position sensor includes a stator winding provided to a stator mounted to a casing and a rotor having a rotor winding provided to a rotor shaft mounted for rotation to the casing, in which the rotational position is sensed by the relative rotation between the rotor and the stator. According to the present invention, the sensor also includes a speed reducing unit for coupling the rotor shaft and the casing together and outer bearings for rotatably carrying the casing, which is revolved by rotation of the rotor shaft by an angle less than the angle of rotation of the rotor shaft.
REFERENCES:
patent: 2889475 (1959-06-01), Emerson
patent: 3141101 (1964-07-01), Ketay
patent: 3177387 (1965-04-01), Leischner
patent: 3197660 (1965-07-01), Leischner
patent: 3530345 (1970-09-01), Ibrahim et al.
patent: 4659953 (1987-04-01), Luneau
patent: 4733116 (1988-03-01), Schulz
Ip Paul
Miska Vit W.
Tamagawa Seiki Kabushiki Kaisha
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