Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Fabrication of Linear Ultrasonic Motor and Effects of the Pressing Force Applied to Rotors on Characteristics

선형 초음파 전동기의 제작과 특성에 미치는 회전자의 가압력

  • Lee, Myung-Hun (Dept of Technology Education, Korea Nat'l Univ. of Ed) ;
  • U, Sang-Ho (Dept of Technology Education, Korea Nat'l Univ. of Ed) ;
  • Kim, Young-Gyun (Mok-po Mechanical Technical High School) ;
  • Kim, Jin-Soo (Dept of Technology Education, Korea Nat'l Univ. of Ed)
  • 이명훈 (한국교원대학교 기술교육과) ;
  • 우상호 (한국교원대학교 기술교육과) ;
  • 김영균 (목포기계공업고등학교 전기과) ;
  • 김진수 (한국교원대학교 기술교육과)
  • Published : 2000.07.17
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Abstract

In this paper the relationship between the pressing force applied to rotors and the characteristics of ultrasonic motor are discussed. The characteristics of ultrasonic motor using a piezoelectric vibrator were systematically studied. And these were applied to the construction of a card forwarding device. The principle of ultrasonic motor is to use an elliptical motion generated on the side of the vibrator, and the elliptical motion of the ultrasonic motor was obtained by complex oscillation of $L_1-B_4$ mode. As the experimental results. the forwarding speed of the card increased linearly as the pressing force applied to rotors increased. The forwarding speed of the card was 16.0 cm/s when the pressing force applied to rotors was 1 N. The forwarding force of the card increased linearly as the pressing force applied to rotors increased. The forwarding force of the card was 398 mN when the pressing force applied to rotors was 1 N. Therefore, this ultrasonic motor can be expected to be used for card-forwarding device and so on.

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