TY - GEN
T1 - 2-D and 3-D tactile pin display using SMA micro-coil actuator and magnetic latch
AU - Matsunaga, T.
AU - Makishi, W.
AU - Totsu, K.
AU - Esashi, M.
AU - Haga, Y.
PY - 2005
Y1 - 2005
N2 - 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.
AB - 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.
KW - Braille
KW - Magnetic latch
KW - SMA micro-coil actuator
KW - Tactile display
UR - http://www.scopus.com/inward/record.url?scp=27544499247&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=27544499247&partnerID=8YFLogxK
U2 - 10.1109/SENSOR.2005.1496422
DO - 10.1109/SENSOR.2005.1496422
M3 - Conference contribution
AN - SCOPUS:27544499247
SN - 0780389948
SN - 9780780389946
T3 - Digest of Technical Papers - International Conference on Solid State Sensors and Actuators and Microsystems, TRANSDUCERS '05
SP - 325
EP - 328
BT - TRANSDUCERS '05 - 13th International Conference on Solid-State Sensors and Actuators and Microsystems - Digest of Technical Papers
T2 - 13th International Conference on Solid-State Sensors and Actuators and Microsystems, TRANSDUCERS '05
Y2 - 5 June 2005 through 9 June 2005
ER -