Analysis of the influence of density on infrared thermography and of the scope of this technique in the detection of internal defects in wood

Authors

  • C. Rodríguez-Liñán Universidad de Sevilla
  • M. J. Morales-Conde Universidad de Sevilla
  • P. Rubio-de Hita Universidad de Sevilla
  • F. Pérez-Gálvez Universidad de Sevilla

DOI:

https://doi.org/10.3989/mc.2012.62410

Keywords:

infrared thermography, wood, density, detection of internal defects, decay

Abstract


This paper shows the results of a laboratory phase for the determination of the 1limits of infrared thermography in detecting internal defects in wood and, furthermore, it analyses how the density of this material can influence the surface temperature displayed in a thermogram. To this end, experimental work is carried out whereby a series of work and environmental parameters are monitored (such as environmental temperature, relative humidity, distance to target), and the process is systematized by using pieces of different wood species (different densities) and by devising a set of samples for which various possible cases are analysed in terms of size and internal position of the damage. Similarly, using these samples, a study has been conducted on the effect on the thermal image produced by an increase of humidity inside the defect phenomena normally associated with wood decay.

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References

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Published

2012-03-30

How to Cite

Rodríguez-Liñán, C., Morales-Conde, M. J., Rubio-de Hita, P., & Pérez-Gálvez, F. (2012). Analysis of the influence of density on infrared thermography and of the scope of this technique in the detection of internal defects in wood. Materiales De Construcción, 62(305), 99–113. https://doi.org/10.3989/mc.2012.62410

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Section

Research Articles