Focus—the ‘FO’ in FORD
Focus—the ‘FO’ in FORD, you must focus carefully before storing an image, because you can’t re-focus later. Just like with any camera, you must optically focus before capturing an image to avoid blurry images, which not only look unprofessional, but also produce inaccurate temperature measurements. To avoid this, always double check the camera’s focus before you take any IR image to achieve an end-result with optimal target focus, because there’s nothing you can do to correct this after the fact.
Good focus = better measurement,
that simple.
Range—the ‘R’ in FORD
Range—the ‘R’ in FORD, the temperatures of the object you plan to measure must be within the range setting you choose prior to capturing your image. While many infrared cameras claim to be able to detect and measure objects from –20°C to 1500°C, they cannot do it within the temperature limits of a single image.
Most modern infrared cameras therefore break up the total temperature measurement specification into a number of defined temperature ranges covering intervals of temperatures that the detector is able to see and image without going into saturation. When an image is saved, all the data within a particular range is captured. Any temperature points which fall outside of that range, however, are not. So, being in the right temperature range before you save an image is critical.