as well, strongly lowering the reading. In the above case, where we have a point-
shaped object, which is much hotter than the surroundings, the temperature reading
will be too low.
10714703;a3
Figure 28.21 Image from the viewfinder of a ThermaCAM 695
This effect is due to imperfections in the optics and to the size of the detector elements.
It is typical for all infrared cameras and can not be avoided.
Publ. No. T559597 Rev. a554 – ENGLISH (EN) – September 27, 2011 149
28 – Introduction to thermographic inspections of electrical installations
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