When measuring the target temperature, it is important to understand the maximum measurement distance at which accurate temperature readings can be obtained. For uncooled microcalorimetric focal plane detectors, in order to accurately distinguish targets, the target image captured by the thermal imager optical system must occupy 9 pixels or more. If the instrument is too far away from the target, the target will be very small, and the temperature measurement result will not accurately reflect the true temperature of the target object, because the temperature measured by the infrared thermal imager at this time averages the temperature of the target object and the surrounding environment. To obtain measurement readings, please fill the instrument's field of view with the target object as much as possible. Displaying enough scenery is necessary to distinguish the target. The distance from the target should not be less than the minimum focal length of the thermal imager optical system, otherwise it cannot be focused into a clear image.
Is there any difference between simply requiring the generation of clear infrared thermal images or also requiring precise temperature measurement? A quantified temperature curve can be used to measure the temperature situation on site, as well as to edit significant temperature rise. Clear infrared images are equally important. However, if temperature measurement is required during the work process and comparison and trend analysis of the target temperature are required, it is necessary to record all target and environmental temperature conditions that affect accurate temperature measurement, such as emissivity, environmental temperature, wind speed and direction, humidity, heat reflection sources, etc