Japan Aviation Electronics Industry, Limited

Hirokuni Wakui

Manabu Yazaki

Kenichi Nakazato

Toshifumi Yoshikawa

Hiroki Ookawara

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 T=Tcos(m&#x3be;+&#x3b8;)+Tcos(m&#x3be;+&#x3b8;) and T=Tsin(m&#x3be;+&#x3b8;)+Tcos(m&#x3be;+&#x3b8;), respectively, where T: a first reference number of turns of each of the detecting coils of each phase, T: a second reference number of turns of each of the cosine-phase coils, T: a second reference number of turns of each of the sine-phase coils, m: a pole pair number in a magnetic flux distribution formed by the exciting coils, m: a pole pair number in each magnetic flux distribution formed by the detecting coils of each phase, &#x3b8;: the phase of the exciting coils, &#x3b8;: each phase of the cosine-phase coils and the sine-phase coils, and &#x3be;: a mechanical angle of the i-th tooth.

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Tokyo, Japan

Hirokuni Wakui