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

fYear

2009

fDate

29-30 May 2009

Firstpage

64

Lastpage

68

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/MEMEA.2009.5167956

Filename

5167956