Measurements without contact in heat transfer. Part B: Quantitative Infrared Thermography
Abstract
The main objective of this lecture is to make the end users aware of the various physical
phenomena and especially of the errors frequently met during temperature and heat flow measurement
by infrared thermography. For that purpose, this chapter will present the three aspects of a quantitative
infrared measurement that are spatial, temporal and thermal resolution. First, the spatial resolution will
be discussed, showing that an increase of the matrix size does not necessarily induce an improvement
of the spatial resolution. Then, a paragraph is especially dedicated to the temporal aspects, as far as
many applications require at least stable frequency to high speed imaging. Last but not least, the
calibration of the systems is discussed, showing that accurate measurements often need a specific
home-made thermal calibration.
Domains
Thermics [physics.class-ph]Origin | Files produced by the author(s) |
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