1) Adjust the focal length
2) Select the correct temperature range
3) Understand the maximum measurement distance
4) Is it only required to generate a clear infrared thermal image, or does it require precise temperature measurement?
5) Single working background
6) Ensure that the instrument is stable during the measurement process
1) Adjusting the focus You can adjust the image curve after the infrared image is stored, but you cannot change the focus after the image is stored, and you cannot eliminate other messy heat reflections. Ensuring correct operation at the first time will avoid operational errors on site. Carefully adjust the focus! If the overheated or too cold reflections above or around the target affect the accuracy of the target measurement, try adjusting the focus or measuring the orientation to reduce or eliminate the effects of reflection. (FoRD means: Focus focal length, Range range, Distance distance)
2) Select the correct temperature range Do you know the temperature range of the target being measured? In order to get the correct temperature reading, be sure to set the correct temperature range. When observing the target, fine-tuning the temperature span of the instrument will result in the best image quality. This will also affect the quality of the temperature profile and the accuracy of the temperature measurement.
3) Understand the maximum measurement distance When you measure the target temperature, it is important to know the maximum measurement distance at which accurate temperature readings can be obtained. For an uncooled micro-heat type focal plane detector, in order to accurately distinguish the target, the target image through the thermal imager optical system must occupy 9 pixels or more. If the instrument is too far from the target, the target will be small and the temperature measurement will not correctly reflect the true temperature of the target object, because the temperature measured by the thermal camera at this time averages the temperature of the target object and the surrounding environment. To get the most accurate measurement readings, fill the target field with the instrument's field of view. Show enough scenes to be able to distinguish the target. The distance from the target should not be less than the minimum focal length of the camera's optical system, otherwise it cannot be focused into a sharp image.
4) Is there any difference between just asking for a clear infrared thermal image or requiring accurate temperature measurement? A quantified temperature profile can be used to measure the temperature of the site and can also be used to edit significant temperature rises. Clear infrared images are equally important. However, if you need to perform temperature measurement during work and require comparison and trend analysis of the target temperature, you need to record all targets and ambient temperature conditions that affect accurate temperature measurement, such as emissivity, ambient temperature, wind speed and direction, humidity. , heat reflection sources, etc.
5) Single working background For example, when the weather is cold, when you are testing outdoors, you will find that most of the targets are close to the ambient temperature. When working outdoors, be sure to consider the effects of solar reflection and absorption on the image and temperature measurement. Therefore, some older models of thermal imaging cameras can only be measured at night to avoid the effects of solar reflections.
6) Ensure that the instrument is stable during the measurement. During the process of capturing images with a low frame rate infrared camera, the image may be blurred due to instrument movement. In order to achieve the best results, the instrument should be as smooth as possible when freezing and recording images. When pressing the store button, try to be gentle and smooth. Even slight instrument shakes can result in unclear images. It is recommended to use a support under your arm to stabilize it, or place the instrument on the surface of the object, or use a tripod to keep it as stable as possible.
