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란쥬반형 압전 진동자를 이용한 선형 초음파 모터의 특성 연구 원문보기
(A) Study on the Characteristics of Linear Ultrasonic Motor using Langevin Type Piezoelectric Transducer

  • 저자

    최명일

  • 학위수여기관

    昌原大學校 大學院

  • 학위구분

    국내석사

  • 학과

    전기공학과

  • 지도교수

  • 발행년도

    2003

  • 총페이지

    42p.

  • 키워드

    란쥬반형 압전 진동자 선형 초음파 모터;

  • 언어

    kor

  • 원문 URL

    http://www.riss.kr/link?id=T9470704&outLink=K  

  • 초록

    Transducer for ultrasonic linear motor with the symmetric and anti-symmetric modes was studied. The ultrasonic linear motor consists of two Langevin type piezoelectric vibrators that cross at right angles with each other in tip. In order to excite symmetric and anti-symmetric modes, the transducer must have a phase shift of 90 degree in space and time. Therefore, the tip of transducer moves on an elliptical motion. In this paper, the finite element analysis was used to optimize dimension and displacement of the transducer. The ultrasonic motor was fabricated using the simulated result and the driving characteristics were measured. No-load velocity was 0.28[m/s] and the maximum efficiency was 30[%] in resonance frequency.


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