Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Dynamic properties of butterfly piezoelectric linear motor by applied voltage

인가 전압에 따른 초소형 압전 리니어모터의 동특성

  • Lee, Won-Hee (Korea Institute Science and Technology, Thin Film material Research Center) ;
  • Kang, Chong-Yun (Korea Institute Science and Technology, Thin Film material Research Center) ;
  • Ju, Byeong-Kwon (Korea University, Department of Electrical Engineering) ;
  • Yoon, Seok-Jin (Korea Institute Science and Technology, Thin Film material Research Center)
  • 이원희 (한국과학기술연구원 박막재료연구센터) ;
  • 강종윤 (한국과학기술연구원 박막재료연구센터) ;
  • 주병권 (고려대학교 전자전기공학과) ;
  • 윤석진 (한국과학기술연구원 박막재료연구센터)
  • Published : 2008.11.06
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Abstract

A piezoelectric ultrasonic linear motor shaped with 'Butterfly' wings has been developed for thin electronics such as cellular phone and PDA. The butterfly piezoelectric transducer is simply composed of an elastic plate, which includes a tip for energy transfer and two protrusions to fix it, and two piezoelectric ceramics. Contact materials, such as a brass, and steel and alumina can make it possible to improve dynamic properties of the motors over a wide range of tribological conditions. The dynamic properties of the motor have been intensively measured and analyzed according to the applied voltage wave forms at the various frequencies. The results of numerical study and experimental investigation will be used for the future optimization of the actuator and the realization of the advanced ultrasonic motor.

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