一、使用过程中存在的问题目前,人们经常使用的红外测温仪测得的是物体的亮度温度,而不是物体的真实温度,所以必须知道目标的另一参数,即材料的发射率才可以求得真实温度。通过调研发现,大部分高压电气开关接线端的材质是纯铜,表面氧化的纯铜发射率约为0.8。但是,目前市场上大部分300℃以下的红外测温仪的发射率是不可调的,出厂时默认为0.95。但是在实际使用过程 First, the use of existing problems Currently, people often use the infrared thermometer measured the brightness temperature of the object, rather than the true temperature of the object, so you must know the target of another parameter, that is, the emissivity of the material can Find the real temperature. Through the survey found that most of the high-voltage electrical switch terminal material is pure copper, the surface oxidation of pure copper emissivity of about 0.8. However, the emissivity of most IR thermometers below 300 ° C currently on the market is not adjustable, leaving the factory default of 0.95. But in actual use process