Numerical Simulation Of The Thermal Image
Generator
Author(s)
E. De Baetselier, D. Deberlanger & G. De Mey
Abstract
Numerical simulation of the thermal image
generator
E. De Baetselier, D. Deberlanger & G. De Mey
Department of Electronics and Information
Systems, University of Ghent,
St. Pietersnieuwstraat 41 >
B9000 Gent, Belgium
ABSTRACT
Our research project aims the construction of a "Thermal Image Generator"(TIG). Such a
tool can easily be constructed using thick film resistors, printed on a ceramic substrate.
By selectively heating the resistors (hence by applying power to them) we can create a
thermal pattern on the substrate (text and figures). The blind person can sense this pattern
using his fingertips.
A practicable realisation of the device needs thermal analysis of the device itself and of
the device-finger interaction. Therefore we conceived a simulation program, solving the
time-dependent thermal problem assuming a cylindrical coordinate system with radial
symmetry. Using the program we were able to change the TIG prototype improving the
thermal screen contrast an
Keywords
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