A Tactile Shape Display Using RC Servomotors

  • Authors:
  • Christopher R. Wagner;Robert D. Howe;S. J. Lederman

  • Affiliations:
  • -;-;-

  • Venue:
  • HAPTICS '02 Proceedings of the 10th Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems
  • Year:
  • 2002

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Abstract

Tactile displays are used to convey small-scale force and shape information to the tip of the finger. In this paper, we present a 6x6 tactile shape display that uses commercial RC servomotors to actuate an array of mechanical pins. The display has a maximum pin deflection of 2 mm along with a resolution of 4 bits. Pin spacing is 2 mm with a pin diameter of 1 mm. The display can accurately represent frequencies up to 25 Hz for small amplitudes and is slew rate limited at 38 mm/sec for larger amplitudes.