2-D and 3-D tactile pin display using SMA micro-coil actuator and magnetic latch

Tadao Matsunaga, W. Makishi, Kentaro Totsu, Masayoshi Esashi, Yoichi Haga

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 Citations (Scopus)

Abstract

2-D and 3-D tactile pin display has been fabricated and developed. Character and graphic information are dynamically displayed by making pins array up and down. Shape Memory Alloy (SMA) micro-coil actuators contract and make the pins up and down when the SMA actuator is heated by supplying electrical current. Magnetic material tube is attached to each pin and a permanent magnet fixes position of the pins up or down state. The mechanism solves problems of heat storage and electrical consumption of the SMA actuator because the current is supplied only when the pins move. A 2-D tactile pin display which has 100 (10 × 10) pins array has been developed and successfully operated. The tactile information are displayed sequentially every 0.3 sec and the pins are latched at 0.1 N by magnetic force. The pins are arranged at a pitch of 2.5 mm and move 2 mm up and down. A multi-step magnetic latch has been developed for a 3-D expression. By using these mechanisms, several tactile information, e.g. 2-D, 3-D, dynamic motions, can be easily displayed.

Original languageEnglish
Title of host publicationTRANSDUCERS '05 - 13th International Conference on Solid-State Sensors and Actuators and Microsystems - Digest of Technical Papers
Pages325-328
Number of pages4
DOIs
Publication statusPublished - 2005 Nov 9
Event13th International Conference on Solid-State Sensors and Actuators and Microsystems, TRANSDUCERS '05 - Seoul, Korea, Republic of
Duration: 2005 Jun 52005 Jun 9

Publication series

NameDigest of Technical Papers - International Conference on Solid State Sensors and Actuators and Microsystems, TRANSDUCERS '05
Volume1

Other

Other13th International Conference on Solid-State Sensors and Actuators and Microsystems, TRANSDUCERS '05
CountryKorea, Republic of
CitySeoul
Period05/6/505/6/9

Keywords

  • Braille
  • Magnetic latch
  • SMA micro-coil actuator
  • Tactile display

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Matsunaga, T., Makishi, W., Totsu, K., Esashi, M., & Haga, Y. (2005). 2-D and 3-D tactile pin display using SMA micro-coil actuator and magnetic latch. In TRANSDUCERS '05 - 13th International Conference on Solid-State Sensors and Actuators and Microsystems - Digest of Technical Papers (pp. 325-328). [2B2.5] (Digest of Technical Papers - International Conference on Solid State Sensors and Actuators and Microsystems, TRANSDUCERS '05; Vol. 1). https://doi.org/10.1109/SENSOR.2005.1496422