High-accuracy position detection apparatus

Details High-accuracy position detection apparatus High-accuracy position detection apparatus

1987-10-06

1988-12-20

Dobeck, Benjamin

Electricity: motive power systems

Positional servo systems

With particular 'error-detecting' means

318616, 318632, 318630, G05B 501

Patent

active

047927399

ABSTRACT:
A high-accuracy position detection apparatus comprises a position detector for detecting a position signal indicating the rotation position of a motor; a coupler for coupling the motor to the position detector with a certain eccentricity; a coupling eccentricity detector, connected to the position detector, for detecting an eccentricity signal, corresponding to a coupling eccentricity of the coupler, from the position detection signal; and a true position signal synthesizer, connected to the position detector and the coupling eccentricity detector, for combining the position signal with the eccentricity signal so as to produce a true position signal which indicates the true position of the motor and is independent of the coupling eccentricity of the coupler.

REFERENCES:
patent: 3184662 (1965-05-01), Wallace
patent: 4196380 (1980-04-01), Gustausson et al.
patent: 4221998 (1980-09-01), Haught et al.
patent: 4358722 (1982-11-01), Iwakane et al.
patent: 4472669 (1984-09-01), Denham et al.
patent: 4527120 (1985-07-01), Kurosawa
patent: 4556885 (1985-12-01), Kurosawa
patent: 4651272 (1987-03-01), El-Ibary
patent: 4707780 (1987-11-01), Gose et al.

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