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Reconstruction of a triangular geometry defects in inaccessible face by a model of active thermography

A. ELHASSNAOUI1, A. EL BALLOUTI2, S. SAHNOUN1,*

Affiliation

  1. Laboratory of Electronics, Instrumentation and Signal Processing, Faculty of Sciences, B.P 20. 24000 El Jadida, Morocco
  2. National School of Applied Sciences, ENSAJ, El Jadida, Morocco

Abstract

In infrared thermography radiations from a heated material are processed in thermogram. This application of thermoelectric technology is used in the study of thermal properties of materials. In this work, we proposed a model to estimate the thickness of the samples that have rear faces partially or completely inaccessible. We have improved the benchmark formula presented by S. Lugin / U.Netzelmann [1] known as "the echo defect shape (EDS)" by reducing the reconstruction error. The proposed model takes into account the effect of the opening angle in the reconstruction of a defect that has a triangular geometry..

Keywords

Active thermography, Defect geometry, Reconstruction of a triangular geometry defect, Angle opening effect.

Submitted at: April 17, 2013
Accepted at: June 12, 2013

Citation

A. ELHASSNAOUI, A. EL BALLOUTI, S. SAHNOUN, Reconstruction of a triangular geometry defects in inaccessible face by a model of active thermography, Journal of Optoelectronics and Advanced Materials Vol. 15, Iss. 5-6, pp. 447-450 (2013)