Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
권호 표지

An Ultraprecision Rotary Motor based on Inchworm-type Actuation

인치웜 구동방법에 의한 초정밀 회전모터

  • Kim, Sang-Chae (Samsung Electronics ) ;
  • Kim, Soo-Hyun (Dept. of Mechanical Engineering, Korea Advanced Institute of Science and Technology)
  • 김상채 (삼성전자(주) 중앙연구소 광메카Lab) ;
  • 김수현 (한국과학기술원 기계공학과)
  • Published : 2001.03.01
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Abstract

An ultraprecision rotary motor is developed using inchworm motion of two belts actuated by elongation of piezoelectric elements. A symmetric lever mechanism with flexure hinges is designed to connect belts with piezoelectric elements. The lever mechanism is used not only to amplify the elongation of piezoelectric element but also to minimize the numbers of components and the effort for assembly. By experiment, the rotational angle by one cycle is varied from $0.2{\times}10-4 rad to 9.76{\times}10-4$ rad depending on input signal amplitude. Further, the motor has the capability of getting more precise rotational resolution by enlarging the radius of the rotor.

Keywords

References

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