Electromagnetic Thimble for Blind: Design and Investigation

Authors

  • R. Bansevicius Kaunas University of Technology
  • V. Jurenas Kaunas University of Technology
  • D. Mazeika Kaunas University of Technology
  • A. Zvironas Kaunas University of Technology
  • J. A. Virbalis Kaunas University of Technology

DOI:

https://doi.org/10.5755/j01.eee.19.10.2399

Keywords:

Blind, graphic information, electromagnetic thimble, magnetic circuit

Abstract

Special electromagnetic thimble is developed and investigated, allowing the blind to perceive specific 2D graphic information. Electromagnetic thimble is based on the idea, that controllable friction force between thimble and ferromagnetic layer of the screen is related to position of contours or lines and intensity or color of background. Electromagnet with axial symmetry is optimal in respect to the magnetic flux leakage. The magnetic circuit of electromagnet was explored and the model of thimble was designed and investigated. By varying the excitation current in interval [4 mA–14 mA], the attraction force has been varied in interval [0,7 N–6 N]. Initial experiments, supporting the feasibility of the method, were performed by employing blind operator.

DOI: http://dx.doi.org/10.5755/j01.eee.19.10.2399

Author Biographies

R. Bansevicius, Kaunas University of Technology

Prof. dr. habil.

Mechatronics Center for Research, Studies and Information

V. Jurenas, Kaunas University of Technology

Ass. prof.

Department of Mechatronics

D. Mazeika, Kaunas University of Technology

Researcher
Mechatronics Center for Research, Studies and Information

A. Zvironas, Kaunas University of Technology

Researcher
Mechatronics Center for Research, Studies and Information

J. A. Virbalis, Kaunas University of Technology

professor of Department of Electrical Engineering

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Published

2013-12-02

How to Cite

Bansevicius, R., Jurenas, V., Mazeika, D., Zvironas, A., & Virbalis, J. A. (2013). Electromagnetic Thimble for Blind: Design and Investigation. Elektronika Ir Elektrotechnika, 19(10), 66-70. https://doi.org/10.5755/j01.eee.19.10.2399

Issue

Vol. 19 No. 10 (2013)

Section

ELECTRONICS

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