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High definition thermal imaging
High definition (or high resolution) thermal imaging refers to the fine detail and clarity of a thermal image. This means it contains a large number of pixels per unit of area. More pixels mean greater temperature measurement accuracy, particularly for small objects. High definition thermal imaging infrared cameras have a 640x480 detector, which delivers 307,200 pixels versus 76,800 in a thermal imager with a 320x240 detector. Four times better resolution (Sixteen times better than a thermal imaging infrared camera with a 160x120 detector. You can be twice the distance away as compared to a 320x240 thermal imaging infrared camera, or 4 times the distance as compared to the 160x120 thermal imaging infrared camera. This type of thermal imager can be used on substations, switchyard, transmission and distribution lines, all of which are littered with this type of target.
Additional recommended knowledge
The Hi-Resolurion infrared camera can be 4 times the distance of a Low-Resolution and 2 times the distance of a Mid Res system and get the same image detail. At 1/2X distance, it takes 4 pictures to cover the same area; at 1/4X distance, it takes 16 pictures to cover the same area.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "High_definition_thermal_imaging". A list of authors is available in Wikipedia.|