Abstract: The number of turns and the winding direction of a cosine-phase coil wound around an i-th tooth and the number of turns and the winding direction of a sine-phase coil wound around the i-th tooth are set according to Tc,i=TSmax cos(ms?i+?2)+T2c cos(me?i+?1) and Ts,i=TSmax sin(ms?i+?2)+T2s cos(me?i+?1), respectively, where TSmax: a first reference number of turns of each of the detecting coils of each phase, T2c: a second reference number of turns of each of the cosine-phase coils, T2s: a second reference number of turns of each of the sine-phase coils, me: a pole pair number in a magnetic flux distribution formed by the exciting coils, ms: a pole pair number in each magnetic flux distribution formed by the detecting coils of each phase, ?1: the phase of the exciting coils, ?2: each phase of the cosine-phase coils and the sine-phase coils, and ?i: a mechanical angle of the i-th tooth.

Abstract: The number of turns and the winding direction of a cosine-phase coil wound around an i-th tooth and the number of turns and the winding direction of a sine-phase coil wound around the i-th tooth are set according to Tc,i=TSmax cos(ms?i+?2)+T2c cos(me?i+?1) and Ts,i=TSmax sin(ms?i+?2)+T2s cos(me?i+?1), respectively, where TSmax: a first reference number of turns of each of the detecting coils of each phase, T2c: a second reference number of turns of each of the cosine-phase coils, T2s: a second reference number of turns of each of the sine-phase coils, me: a pole pair number in a magnetic flux distribution formed by the exciting coils, ms: a pole pair number in each magnetic flux distribution formed by the detecting coils of each phase, ?1: the phase of the exciting coils, ?2: each phase of the cosine-phase coils and the sine-phase coils, and ?i: a mechanical angle of the i-th tooth.