Title :
Microtuators of SMA for Braille display system
Author :
Chaves, D.R. ; Peixoto, I.L. ; Lima, A.C.O. ; Vieira, M.F. ; de AraÙjo, C. J C
Author_Institution :
Health Sci. High Sch., State Univ. of Amazonas, Manaus, Brazil
Abstract :
This paper presents a new configuration of microactuator based on the shape memory alloys (SMA) NiTi (Nickel-Titanium), that it can be applied in touch interfaces high resolution. The essentials criterions for the project of a tactile display and factors as time of reply and force mechanics on the Braille display surface had been satisfied. The time was 1s for the displacement of the pin Braille of the order of 0.7 mm, from a current level around 350 mA, and the force for the microactuator was superior 120 mN.
Keywords :
handicapped aids; haptic interfaces; microactuators; nickel alloys; shape memory effects; titanium alloys; Braille display system; NiTi; Nitinol actuators; force mechanics; microactuator; shape memory alloys; tactile display; time of reply; touch interfaces; Actuators; Auditory system; Deafness; Displays; Educational technology; Microactuators; Pins; Shape memory alloys; Wire; Writing; Braille display; Nitinol actuators; Shape memory alloys; tactile display;
Conference_Titel :
Medical Measurements and Applications, 2009. MeMeA 2009. IEEE International Workshop on
Conference_Location :
Cetraro
Print_ISBN :
978-1-4244-3598-2
Electronic_ISBN :
978-1-4244-3599-9
DOI :
10.1109/MEMEA.2009.5167956
