An Electrothermally Actuated MEMS Braille Dot

U Izhar; F Albermani; D. M. G Preethichandra; J Sul; P. A. Janse van Rensburg

doi:10.1007/978-981-13-7603-0_93

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An Electrothermally Actuated MEMS Braille Dot

Conference paper

Peer reviewed

An Electrothermally Actuated MEMS Braille Dot

U Izhar, F Albermani, D. M. G Preethichandra, J Sul and P. A. Janse van Rensburg

ACMSM25, pp.985-993

Australasian Conference on the Mechanics of Structures and Materials (ACMSM), 25th (Brisbane, Australia, 04-Dec-2018 - 07-Dec-2018)

Lecture Notes in Civil Engineering, 37, Springer Singapore

2019

DOI: https://doi.org/10.1007/978-981-13-7603-0_93

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Abstract

Actuators

Braille

Electrothermal

Tactile

With some recent attempts on development of micro tactile displays, the realization of portable Braille is becoming more feasible. Such tactile displays can help visually impaired individuals to read and comprehend patterns by using the sense of touch. The current proposed designs for such tactile displays mainly use fluid expansion to enhance the out of plane displacements of the Braille dots. These methods render some challenge in terms of fabrication and size. In this work, we propose a design based on electrothermal actuation of a micro Braille dot. The ultimate goal of the research is to work towards a wearable system that can be connected to a computer for reading text files. The proposed design can generate out of plane displacements of 250 µm at a 58 ℃ rise from ambient. The dot can be actuated by low input voltage of 1.36 V and can apply a force of 5 mN. Physical displacement and temperature can reinforce a valid dot detection.

Details

Title: An Electrothermally Actuated MEMS Braille Dot
Authors: U Izhar (Corresponding Author) - Central Queensland University
F Albermani (Author) - Central Queensland University
D. M. G Preethichandra (Author) - Central Queensland University
J Sul (Author) - Central Queensland University
P. A. Janse van Rensburg (Author) - Central Queensland University
Contributors: Chien Ming Wang (Editor) - University of Queensland
Johnny C. M Ho (Editor) - University of Queensland
Sratawat Kitipornchai (Editor) - University of Queensland
Publication details: ACMSM25, pp.985-993
Conference details: Australasian Conference on the Mechanics of Structures and Materials (ACMSM), 25th (Brisbane, Australia, 04-Dec-2018 - 07-Dec-2018)
Series: Lecture Notes in Civil Engineering; 37
Publisher: Springer Singapore
DOI: 10.1007/978-981-13-7603-0_93; 10.1007/978-981-13-7603-0
ISSN: 2366-2565
ISBN: 9789811376030
Organisation Unit: University of the Sunshine Coast, Queensland; School of Science, Technology and Engineering
Language: English
Record Identifier: 99622140502621
Output Type: Conference paper

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