An in-wheel type micro ultrasonic motor utilizing sector shaped piezoelectric vibrators

Abstract

A micro ultrasonic motor using sector shaped piezoelectric ceramics vibrators has been designed and fabricated. This type micro motor has advantages, such as a high-torque driving, a low-profile, lightweight and compact structure. The outer diameter of vibrator was 9.8 mm, the inner diameter was 5.2 mm, and the thickness was 0.8 mm. The vibrator's 1st… (More)

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