| 摘要 |
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. |
