Abstract
Tactile perception of alpha-numerics is possible using a tactile illusion (TI). The illusory sensation of motion is produced by mechanical actuators applying points of pressure on the skin. Vibrating points induce a nonveridical perception of motion from point to point. Intact lemniscal and parietal cortex are necessary for perception of the TI and can be used as a neurophysiological testing tool and an additional human-machine communication channel. We describe a 4 x 5 actuator array of individual vibrating pixels for fingertip tactile communication. The array utilizes novel micro-clutch MEMS technology. Individual pixels are turned ON and OFF by pairs of microscopic thermal actuators, while the main vibration is generated by a vibrating piezo-electric plate. Physiological parameters required for inducing TI and the fabrication sequence for the thermal micro-actuators along with actuation results are presented. Fingertip perception of micro-actuators could be built into a variety of data acquisition interfaces for handicapped persons.
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References
Gonzales, G.R.: Symbol recognition produced by points of tactile stimulation: The illusion of linear continuity. Mayo Clinic Proceedings 71, pp. 1039–1046, 1996
Gonzales, G.R., Lewis, S.A., Weaver, A.L.: Tactile Illusion Perception in Patients with Central Pain. Mayo Clinic Proceedings 76, pp. 267–274, 2001
Gonzales, G.R., Manfredi, P.L., Payne, R.: Tactile Phi Phenomenon in Mononeu-ropathy Patients with Tactile Allodynia. Journal of Pain (Suppl), 2, p. 3, 2001
Enikov, E.T., Boyd, J.G.: Electroplated electro-fluidic interconnects for chemical sensors, Sensors and Actuators A 84, p. 161–164, 2000
Enikov, E.T.: Structures and Materials. In: Bishop R. (ed.): The Mechatronics Handbook. CRC Press, Boca Raton, FL, 2001
Ebefors, T., Ulfstedt-Mattsson, J., Kalvesten, E., Stemme, G.: 3D micro-machined devices based on Polyimide Joint technology, Proceedings SPIE 3892, pp. 118–132, 1999
Ebefors, T., Kalvesten, E., Stemme, G.: Dynamic actuation of polyimide V-groove joints by electrical heating. Sensors and Actuators A 67, p. 199–204, 1998
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© 2002 Springer-Verlag Berlin Heidelberg
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Enikov, E.T., Lazarov, K.V., Gonzales, G.R. (2002). Microelectrical Mechanical Systems Actuator Array for Tactile Communication. In: Miesenberger, K., Klaus, J., Zagler, W. (eds) Computers Helping People with Special Needs. ICCHP 2002. Lecture Notes in Computer Science, vol 2398. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-45491-8_105
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DOI: https://doi.org/10.1007/3-540-45491-8_105
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