Distance And Spot Size; Field Of View - Amprobe IR-710 Manual De Usuario

Distance and Spot Size

As the distance (D) from the target being measured increases, the spot size (S) of the area
measured by the instrument becomes larger. The spot size indicates 90% encircled energy.

Field of view

Make sure that the target is larger than the spot size. The smaller the target, the
closer you should be to it.
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