Study on micro ultrasonic motor using a preload mechanism

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

We propose a preload mechanism to be assembled in a micro ultrasonic motor. The micro ultrasonic motor consists of a metallic stator with a volume of approximately one cubic millimeter, but its small size makes the preload mechanism difficult to be miniaturized. In this report, we build a micro ultrasonic motor with the preload mechanism using a micro coil spring. The total motor size is miniaturized to approximately 3 mm. In the prototypes, two preload mechanisms are tested: the rotor is pressed to the stator by a micro coil in axial and radial directions. We evaluate the motor performance using both preload mechanisms experimentally.

Original languageEnglish
Title of host publication2015 IEEE International Ultrasonics Symposium, IUS 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479981823
DOIs
Publication statusPublished - Nov 13 2015
Externally publishedYes
EventIEEE International Ultrasonics Symposium, IUS 2015 - Taipei, Taiwan, Province of China
Duration: Oct 21 2015Oct 24 2015

Publication series

Name2015 IEEE International Ultrasonics Symposium, IUS 2015

Other

OtherIEEE International Ultrasonics Symposium, IUS 2015
Country/TerritoryTaiwan, Province of China
CityTaipei
Period10/21/1510/24/15

Keywords

  • elliptical motion
  • high-speed camera
  • piezoelectric actuator
  • ultrasonic motor

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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