Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Fabrication and Characterization of Array Tactile Actuator Based on Cellulose Acetate

셀룰로오스 아세테이트 기반 어레이 촉각 액추에이터의 제작 및 특성평가

  • Kim, Hyun-Chan (Department of Mechanical Engineering, Inha University) ;
  • Yun, Sungryl (Transparent Transducer and UX Creative Research Center, Electronics and Telecommunications Research Institute) ;
  • Ko, Hyun-U (Department of Mechanical Engineering, Inha University) ;
  • Kim, Jaehwan (Department of Mechanical Engineering, Inha University)
  • 김현찬 (인하대학교 기계공학과) ;
  • 윤성률 (한국전자통신연구원 투명소자 및 UX창의연구실) ;
  • 고현우 (인하대학교 기계공학과) ;
  • 김재환 (인하대학교 기계공학과)
  • Received : 2015.03.26
  • Accepted : 2015.06.30
  • Published : 2015.08.01
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Abstract

This paper reports the enhanced fabrication and characterization of a $3{\times}3$ array tactile actuator composed of cellulose acetate. The array tactile actuator, with dimensions of $15{\times}15{\times}1mm^3$, consists of 9 pillar-supported cells made from a cellulose-acetate molding. The fabrication process and performance test along with the results for the suggested actuator are explained. To improve the cell-array fabrication, a laser cut was adopted after the molding process. The displacement of the unit cell increased the input voltage and frequency. Various top masses are added onto the actuator to mimic the touch force, and the acceleration of the actuator is measured under actuation. When 2 kV is applied to the actuator, the maximum acceleration is 0.64 g, which is above the vibrotactile threshold. The actuation mechanism is associated with the electrostatic force between the top and bottom electrodes.

Keywords

References

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