時計用ステップモータの動作特性 : その1

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タイトル別名
  • Motion of Step Motor in Time Piece (Part I)
  • 時計用ステップモータの動作特性-1-
  • トケイヨウ ステップ モータ ノ ドウサ トクセイ 1

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The method and the result of the analysis by the simulation for the motion of the step motor used in time pieces with quartz oscillator are stated in this paper. In the beginning, the equations regarding to the input circuit and the outhut shaft of the motor and the parameters in those equations are explained. Next, the step motions of the output shaft by the input pulse with the height e and the width τ are obtained by computer. Those step motions are classified into the normal one step forward motion and the other several abnormal step motions, and so classified motions are expressed by notations. The step motions obtained from the various combinations of e and τ are written automatically at as many corresponding points as possible in the e-τ plane by using the notations according to the above classification. In the e-τ plane, contour lines are drawn to enclose the same kind of notation and discriminate the other kinds. The plane drawn by the above mentioned process is named "motion map" The reason why the contour lines in the motion map are caused is explained in detail. The motion maps obtained from the simulation with computer and from the experiment by using actual step motor are compared each other, and it is ascertained that both agree farely well.

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