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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Design and Fabrication of Flat-type L$_1$-$B_8$ Mode Ultrasonic Motors

평판형 L$_1$-$B_8$ 모드 초음파 전동기의 설계 및 제작

  • 우상호 (한국교원대학교 기술교육과) ;
  • 김우태 (한국교원대학교 기술교육과) ;
  • 신순인 (한국교원대학교 기술교육과) ;
  • 김동연 (한국교원대학교 기술교육과) ;
  • 김진수 (한국교원대학교 기술교육과)
  • Published : 2001.11.01
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Abstract

Recently, developments of device using characteristics of ceramics as a new technical material is in progress. While doing so, Ultrasonic motor which is a part of research & flat-type $L_1-B_8$ mode Ultrasonic motor and measured the operation characteristics of its. The size of USM is 80*20*1.5[$mm{^1}$](length*width*thickness) and is constructed with stator by piezo-ceramics and stainless elastic body and rotator by bearings. As results of experiments, the fastest speed of revolution($\upsilon$), the maximum torque(T) and the efficiency($\eta$) were 37.5[cm/sec], 5.0[mN$\cdot$M] and 1.17[%] respectively when 27.9[kHz], 150[gf], 50[V] were applied. SO, we think this flat-type $L{_1}-B{_8}$ mode Ultrasonic motor is able to be used for applications in forwarding device of a paper or electric card so on. Key Words: Flat=type $L{_1}-B{_8}$ mode Ultrasonic Motors, Piezoelectric ceramics, forwarding device.

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