A Phase-Step Linear Motor: Force and Speed of a Translator Driven by Incremental Phase Advance

This paper presents a complete design study of a linear motor whose armature advances by discrete phase steps, computed throughout from stated assumptions. The step energy divided by the step increment gives a mean force of 425 N, sufficient to accelerate the reference load at 0.106 m per second squared. At a step rate of one thousand per second the translator moves at 2.00 mm per second and draws 1.0 W; at ten thousand steps per second it reaches 20.00 mm per second at 10.0 W. Every figure is a computed result of the stated model and nothing was built or tested: the study is SIMULATED, NOT MEASURED, and its limits are stated as plainly as its performance.