MR Haptic Bottum Display

• Project: MR Haptic Bottum Display
• Duration: 2014年度
• Members: Aguirre Dominguez, Sophon Somlor, Alexander Shmitz
• Abstract: This paper describes a combined tactile sensor and
  haptic interface that can change its stiffness using
  magnetorheological fluids (MR fluid). The tactile sensor consists
  of 6 distributed capacitive sensors that can sense the location
  and the amount of applied force. Above the sensors is a chamber
  filled with MR fluid. By changing the magnetic field, the
  hardness of the MR fluid, and thereby of the haptic interface,
  can be changed. Fast changes of the magnetization direction
  lead to a sensation of vibration. The resulting device can be used
  for novel haptic input devices or for robotic grippers. A
  prototype device has been constructed, and the effects of the
  varying magnetic field and the resulting varying stiffness of the
  MR fluid on the distributed force sensing with the capacitive
  sensors has been evaluated. We discovered that the measured
  forces vary very little with changes in the strength of the
  magnetic field.
• Publication/Demonstration:
  • Sophon Somlor, Gonzalo Aguirre Dominguez, Alexander Schmitz, Mitsuhiro Kamezaki and Shigeki Sugano. 2015. A Haptic Interface with Adjustable Stiffness Using MR Fluid, 2015 IEEE International Conference on Advanced Intelligent Mechatronics (AIM), pp.1132-1137.