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Thermographic measurement techniques
33.2.1.1.1 Method 1: Direct method
Follow this procedure:
1. Look for possible reflection sources, considering that the incident angle = reflection an-
gle (a = b).
Figure 33.1 1 = Reflection source
2. If the reflection source is a spot source, modify the source by obstructing it using a
piece if cardboard.
Figure 33.2 1 = Reflection source
#T810190; r. AL/47698/47698; en-US
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