Development of Non-contact Torque Sensor

비접촉 토오크센서의 개발(I)

  • Son, Dae-Rak (Korea Reserch Institute of Standards and Science) ;
  • Im, Sun-Jae (Korea Reserch Institute of Standards and Science) ;
  • Kim, Chang-Seok (Korea Reserch Institute of Standards and Science) ;
  • Nam, Gung-Seok (Dept. of Mechanical Engineering, Chungnam National University)
  • Published : 1992.03.01

Abstract

A non-contact torque sensor was developed using amorphous alloy. The change of maixmum magnetic induction of C0-based amorphous alloy under the tensile and compressive stress was proportional to applied torque. For the construction of the torque sensor, a glass fiber reinforced-epoxy rod was used as shaft. The amorphous strips were attached on the epoxy shaft in the direction of $+45^{\circ}$and $-45^{\circ}$. The magnetizing coil and 2 sensing coil was installed. The static and dynamic test was carried out. The linearity and sensor hysteresis of the torque sensor was less than 1%.

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