한국전기전자재료학회:학술대회논문집 (Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference)
- 한국전기전자재료학회 2003년도 하계학술대회 논문집 Vol.4 No.2
- /
- Pages.664-668
- /
- 2003
압전세라믹을 이용한 초음파 리니어 모터의 특성연구
A Study on the Characteristics of Ultrasonic Linear Motor Using Piezoelectirc Ceramics
- Choi, Myeong-Il (Dept. of Electrical Eng., Changwon National Univ.) ;
- Jeong, Dong-Seok (Dept. of Electrical Eng., Changwon National Univ.) ;
- Chong, Hyon-Ho (Dept. of Electrical Eng., Changwon National Univ.) ;
- Lee, Jae-Hyung (Dept. of Electrical Eng., Changwon National Univ.) ;
-
Park, Tae-Gone
(Dept. of Electrical Eng., Changwon National Univ.)
- 발행 : 2003.07.10
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.