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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Analysis of Low-Profile Piezoelectric Butterfly Linear Motor using 3D Laser Vibrometer

  • Lee, Won-Hee (Electric Materials Center, Korea Institute of Science and Technology) ;
  • Kang, Chong-Yun (Electric Materials Center, Korea Institute of Science and Technology) ;
  • Paik, Dong-Soo (Electric Materials Center, Korea Institute of Science and Technology) ;
  • Ju, Byeong-Kwon (Electric Materials Center, Korea Institute of Science and Technology) ;
  • Yoon, Seok-Jin (Display and Nanosystem Laboratory, College of Engineering, Korea University)
  • 이원희 (한국과학기술연구원 전자재료센터) ;
  • 강종윤 (한국과학기술연구원 전자재료센터) ;
  • 백동수 (한국과학기술연구원 전자재료센터) ;
  • 주병권 (한국과학기술연구원 전자재료센터) ;
  • 윤석진 (고려대학교 전자전기공학과)
  • Published : 2010.06.16
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Abstract

Piezoelectric linear motors have been widely studied for auto focusing devices of digital cameras and cellular phones due to their simple structure. In this paper, we confirmed that novel piezoelectric butterfly linear motor was fabricated and its dynamic properties were analyzed. The piezoelectric transducer (having size $9{\times}8{\times}1\;mm^3$) is composed of an elastic plate, which includes a tip for energy transfer and two fixing protrusions for fixture, and two piezoelectric ceramics. The butterfly linear motor has been designed and optimized using A TILA simulation program. The superposed motion is an elliptical vibration on the tip. The actual movement of the manufactured actuator was confirmed by a 3D laser dopier vibrometer and compared with the simulation results. 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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