3. Thermographic measurement

Radiometric measurement is the basis for thermometric measurement (measurement of temperatures by radiation) and thermographic measurement (radiation mapping, generally aimed at temperature mapping or thermograms).

The measuring camera is calibrated on a blackbody at close range, under controlled laboratory conditions. This is the calibration situation.

This camera is then used on a real body in any conditions, on site. This is a measurement situation.

3.1 Calibration situation

In the laboratory, a temperature reference source (perfectly characterized and whose radiative behavior is very close to that of a blackbody) is placed at a short distance in front of the selected camera configuration. The validity...

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Thermographic measurement

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Bibliography

Temperature measurement

(1) - MARTINET (J.) - La mesure des températures par rayonnement thermique - Monographie du BNM. Éditions Chiron. 230 p. (1981).
(2) - BARDON (J.P.), CASSAGNE (B.) - Température de surface. Mesures par contact. Techniques...

Standards and norms

Non-destructive testing – Infrared thermography – Vocabulary related to equipment characterization. - NF A09-400 - Décembre 1991
Non-destructive testing – Infrared thermography – Characterization of equipment. - NF A09-420 - Avril 1993
Non-destructive testing – Infrared thermography – Equipment characterization methods. - NF A09-421 - Avril 1993
Quantities and units – Part 7: Light. - NF ISO 80000-7...