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Passive Thermography, Thermal Imaging

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Handbook of Advanced Nondestructive Evaluation

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Abstract

Thermography is an imaging technique designed to use the thermal radiation of an object to determine its characteristics. The surface radiation of an object is measured. With the use of Planck’s Radiation Law and knowing the emissivity, it is possible to calculate the surface temperature.

The emissivity of real bodies is explained on the basis of the physical laws governing the emission of radiation. The infrared radiation sensors required for the detection are presented below. These are divided into thermal sensors and photon sensors. Thermal sensors detect the radiation energy, while photon sensors record the photon flux. The structure and functionality of thermal imaging cameras are set out. Finally, thermographic techniques for preventive maintenance, testing electronic components, and process monitoring are presented.

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References

  • Budzier H, Gerlach G (2011) Thermal infrared sensors. Wiley, Chichester

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  • Rogalski A (1995) Infrared photon detectors. SPIE Press, Bellingham

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  • Vollmer M, Möllmann K-P (2010) Infrared thermal imaging. Weinheim, Wiley-VCH

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  • Williams TL (2009) Thermal imaging cameras. CRC Press, Boca Raton

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Author information

Authors and Affiliations

  1. Institute of Solid State Electronics, Technische Universität Dresden, Dresden, Germany

    Helmut Budzier & Gerald Gerlach

Authors
  1. Helmut Budzier
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  2. Gerald Gerlach
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Corresponding author

Correspondence to Gerald Gerlach .

Editor information

Editors and Affiliations

  1. Department of Electrical and Computer Engineering, The University of Akron, Akron, OH, USA

    Nathan Ida

  2. Center for Nondestructive Evaluation, Iowa State University Center for Nondestructive Evaluation, Ames, IA, USA

    Norbert Meyendorf

Section Editor information

  1. Department of Electrical and Computer Engineering, University of Akron, Akron, USA

    Ida Nathan

  2. Center for Nondestructive Evaluation, Iowa State University, Ames, IA, USA

    Norbert Meyendorf

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Budzier, H., Gerlach, G. (2019). Passive Thermography, Thermal Imaging. In: Ida, N., Meyendorf, N. (eds) Handbook of Advanced Nondestructive Evaluation. Springer, Cham. https://doi.org/10.1007/978-3-319-26553-7_12

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