腕時計用リバーシブル・ステップモーター

概要

論文の詳細を見る
Stepping motors which can rotate only in one direction have been used usually as the electro-mechanical converters in quartz-crystal wrist watches. Recently, however, reversible stepping motor have become necessary for wrist watches to be equipped with a lot of functions and to be simplified in mechanism. The present paper gives a result of investigation on the stepping motors which can rotate either direction, clockwise or countcr-clockwise, as is desired. It has been proved here that the reversible rotation can be obtained by varying the index torque, T(θ), or the shape of the drive pulse, E{u(t)-u(t-τ)}. It seems the latter method is more suitable for wrist watches.
社団法人日本時計学会の論文
1980-06-20