Understanding Distance:Size Ratio

To determine how far away you can measure, you need to know the spot size ratio (SSR) of your camera. Also known as the Distance:Size ratio (D:S ratio), this ratio tells you how far you can be (Distance) from a target of a given size (Size) and still get an accurate temperature measurement.

PDF) Evaluation of the Size-of-Source Effect in Thermal Imaging Cameras

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Understanding Distance:Size Ratio

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PDF) Evaluation of the Size-of-Source Effect in Thermal Imaging Cameras

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