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Design of a Three-Axis Force Sensor for Finger Force Measuring System

손가락 힘측정장치의 3축 힘센서 설계

  • Lee, Kyeong-Jun (Department of Control & Instrumentation Engineering, ERI, Gyeongsang National Unversity) ;
  • Kim, Gab-Soon (Department of Control & Instrumentation Engineering, ERI, Gyeongsang National Unversity)
  • Received : 2015.11.01
  • Accepted : 2016.01.19
  • Published : 2016.03.31

Abstract

This paper describes the design and fabrication of a three-axis force sensor with three parallel plate structures(PPSs) for measuring force in a finger force measuring system for a spherical object catch. The three-axis force sensor is composed of a Fx force sensor, Fy force sensor and a Fz force sensor, and the elements of Fx force sensor and Fy force sensor are a parallel plate structure(PPS) respectively and Fz force sensor is two PPS. The three-axis force sensor was designed using FEM(Finite Element Method), and manufactured using strain-gages. The characteristics test of the three-axis force sensor was carried out. As a test results, the interference error of the three-axis force sensor was less than 1.32%, the repeatability error of each sensor was less than 0.04%, and the non-linearity was less than 0.04%.

Acknowledgement

Supported by : 한국연구재단

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