FLIR ThermaCAM P45 User Manual page 163

Step Action
3 Measure the radiation intensity (= apparent temperature) from the reflecting source
using the following settings:
Emissivity: 1.0
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D
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You can measure the radiation intensity using one of the following two methods:
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Figure 18.3 1 = Reflection source
➲ Please note the following:
Using a thermocouple to measure reflecting temperature is not recommended for
two important reasons:
A thermocouple does not measure radiation intensity
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A thermocouple requires a very good thermal contact to the surface, usually by
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gluing and covering the sensor by a thermal isolator.
18.2.1.1.2 Method 2: Reflector method
Step Action
1 Crumble up a large piece of aluminum foil.
2 Uncrumble the aluminum foil and attach it to a piece of cardboard of the same
size.
3 Put the piece of cardboard in front of the object you want to measure. Make sure
that the side with aluminum foil points to the camera.
4 Set the emissivity to 1.0.
Publ. No. 1557966 Rev. a155 – ENGLISH (EN) – February 6, 2006
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18 – Thermographic measurement techniques
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