Angular position transducer

Details Angular position transducer Angular position transducer

1994-01-18

1995-09-05

Cuchlinski, Jr., William A.

Geometrical instruments

Miscellaneous

Light direction

318605, G01B 3300, G01B 730

Patent

active

054469660

ABSTRACT:
Disclosed is a high accuracy angular position transducer of simple constuction. The angular position transducer consists of a stator core in slots of which both exciting windings with p .sub.1 pole pairs and output windings with p .sub.2 pole pairs are wound, and a rotor core which carries no windings and has salient poles whose number is an integer N satisfying one of the following relations, p.sub.1 +p.sub.2 =N, or p.sub.1 -p.sub.2 =.+-.N. In this construction the angular position is detected by using the following voltages induced in output windings: two or three phase voltages having a sinusoidal waveform of one cycle per rotation of 1/N of the circumference, in the combination of single phase exciting windings and two or three phase output windings; single phase voltage having a sinusoidal waveform whose phase shifts by 2.sub..pi. per rotation of 1/N of the circumference, in the combination of two phase exciting windings and single phase output windings.

REFERENCES:
patent: 3906339 (1975-09-01), Leisterer
patent: 4216466 (1980-08-01), Chasson et al.
patent: 4584577 (1986-04-01), Temple
patent: 4626754 (1986-12-01), Habermann et al.
patent: 5025201 (1991-06-01), Berger
patent: 5250889 (1993-10-01), Ezuka

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