TY - GEN
T1 - Vibrational Braille code display with MEMS-based hydraulic diplacement amplification mechanism
AU - Matsumoto, Y.
AU - Arouette, X.
AU - Ninomiya, T.
AU - Okayama, Y.
AU - Miki, N.
PY - 2010
Y1 - 2010
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=77952774658&partnerID=8YFLogxK
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U2 - 10.1109/MEMSYS.2010.5442577
DO - 10.1109/MEMSYS.2010.5442577
M3 - Conference contribution
AN - SCOPUS:77952774658
SN - 9781424457649
T3 - Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
SP - 19
EP - 22
BT - MEMS 2010 - The 23rd IEEE International Conference on Micro Electro Mechanical Systems, Technical Digest
T2 - 23rd IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2010
Y2 - 24 January 2010 through 28 January 2010
ER -