Vibrational Braille code display with MEMS-based hydraulic diplacement amplification mechanism

Y. Matsumoto, X. Arouette, T. Ninomiya, Y. Okayama, N. Miki

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

9 Citations (Scopus)

Abstract

We demonstrate an efficient vibrational Braille code display with large-displacement MEMS actuator arrays. The large displacement is realized by hydraulic displacement amplification mechanisms (HDAM). Static and dynamic characteristics of HDAM were investigated and 18- and 11-fold amplification were achieved in static and dynamic (at 70 Hz) actuation, respectively. We applied actuator arrays consisting of HDAM and piezoelectric actuators to Braille code display. Owing to the characteristics of finger tactile receptors being more sensitive to vibrational stimuli than static ones and the natural frequency of HDAM, vibrational actuation at 70 Hz, which required a low voltage of 30V for subjects to detect the code, were more efficient than static actuation, which required 65V, and vibrational actuation at other frequencies.

Original languageEnglish
Title of host publicationMEMS 2010 - The 23rd IEEE International Conference on Micro Electro Mechanical Systems, Technical Digest
Pages19-22
Number of pages4
DOIs
Publication statusPublished - 2010
Event23rd IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2010 - Hong Kong, China
Duration: 2010 Jan 242010 Jan 28

Publication series

NameProceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
ISSN (Print)1084-6999

Other

Other23rd IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2010
CountryChina
CityHong Kong
Period10/1/2410/1/28

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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  • Cite this

    Matsumoto, Y., Arouette, X., Ninomiya, T., Okayama, Y., & Miki, N. (2010). Vibrational Braille code display with MEMS-based hydraulic diplacement amplification mechanism. In MEMS 2010 - The 23rd IEEE International Conference on Micro Electro Mechanical Systems, Technical Digest (pp. 19-22). [5442577] (Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)). https://doi.org/10.1109/MEMSYS.2010.5442577