Abstract
It is necessary to meet three basic requirements to achieve precise imaging using a thermographic camera [85]:
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1
The right thermal range must be selected in the program settings of a camera. For example when scanning a living organism set the thermal range to -20 to 100 °C using a long-wave camera like the Fluke Ti55/20. Currently there are also more sensitive cameras with a smaller thermal range available.
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2
The correct camera focus must be set, taking into consideration the surface characteristics of a measured object, such as the reflections off shiny surfaces. Focusing is done manually by rotating the camera lens or by using joystick. Focusing itself should be carried out using a gray scale because of the human eye’s sensitivity.
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3
The correct optimal distance and angle of measurement must be set according to camera’s position as opposed to that of the object of measurement (Fig. 44).
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© 2013 Springer-Verlag Berlin Heidelberg
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Živčák, J., Madarász, L., Hudák, R., Rudas, I.J. (2013). Thermography System Implementation in Practice. In: Methodology, Models and Algorithms in Thermographic Diagnostics. Topics in Intelligent Engineering and Informatics, vol 5. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-38379-3_4
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DOI: https://doi.org/10.1007/978-3-642-38379-3_4
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