Abstract

SUMMARY This paper deals with the driving principle and the experimental demonstration of, a micro motor which can convert rotation into linear motion and generate large displacement. The motor is a wobble type one; its rotor and stators have screw threads. When the rotor turns, it moves linearly in the axial direction like a screw. The range of linear motion is limited only by the length of the rotor. The threaded wobble motor can be driven either magnetically or electrostatically. We have fabricated a magnetic version having a rotor of lmm in diameter and operated it successfully.

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