Flux distribution to inductor in claw pole linear pulse motor

The use of linear pulse motors (LPM) have increased in industry because of the desirability of direct drive for control. The authors have developed the Claw-Pole Linear Pulse Motor (CP-LPM) which is a linear version of a rotating PM type stepping motor. In this paper, we investigate inductor specifications inthe CP-LPM. Measurements of flux density confirmed the hypothesis that modifying inductor shape from rectangular to trapezoidal makes magnetic saturation difficult. Increasing pole pitch Tau also improved magnetic characteristics.