Use steps of infrared thermal imager

The infrared thermal imager uses an infrared detector and an optical imaging objective lens to receive the infrared radiation of the measured target, and reflects its energy distribution pattern to the photosensitive element of the infrared detector, so as to obtain an infrared thermal image, which corresponds to the thermal distribution field on the surface of the object. Generally speaking, intelligent infrared thermal imager is to convert the invisible infrared energy emitted by the object into a visible thermal image.

1. Parameter setting:
Before the infrared thermal imager measures, the parameters need to be set, and the setting of the emissivity is the most critical, which has the greatest impact on the results of the measurement. The most important thing to ensure accuracy is to correctly select the emissivity of the measured object, which has the greatest influence on the accuracy of the temperature measurement results. In addition, there are settings such as temperature, humidity and distance.
2) Find the focus:
Generally, an infrared thermal imager is used to conduct a comprehensive scan of all the parts to be measured to find out the abnormal heating parts, and then the abnormal temperature parts and key detection are carried out to accurately measure the temperature. Compare the abnormal point temperature with the historical operating temperature accordingly, and if the temperature changes greatly, take the map record for further analysis.
3. Abnormal analysis:
The temperature anomaly should be detected from different directions, the hottest spot should be found and the best angle should be selected for shooting. When shooting with an infrared thermal imager, it is best to include both the abnormal points you want to shoot and the normal points in an atlas. This provides some reference and basis for judgment.
4. Data record:
Select different ambient temperature reference bodies for different detection objects, and record the ambient reference temperature. When shooting, at least two maps should be taken, one containing the same kind of two-phase or three-phase equipment, in order to carry out the same kind of comparison; The other one is for the heating phase to take a close shot on the premise of ensuring safety, in order to obtain the real temperature value. In addition, the infrared thermal imager should also choose a reasonable shooting distance, as far as possible to make the device full of the whole picture. At the same time, the corresponding visible light photos should be taken. For the infrared thermal imager, in addition to recording the map, the data need to be recorded to provide a basis for the later analysis.