工业窑炉作为加热设施,广泛应用于冶金,机械,建材等行业。在其生产过程中,为了保证加热质量,必须根据被加热材料的温度情况,来控制炉内温度和加热时间。而被加热件温度数值的获得,通常是采用热电偶,直接测量。利用这种方法,工作起来很不方便,热电偶消耗量又很大,一但断偶又易造成产品质量事故,而且对于较大尺寸的 Industrial kilns as heating facilities, widely used in metallurgy, machinery, building materials and other industries. In its production process, in order to ensure the quality of heating, must be based on the temperature of the material being heated, to control the furnace temperature and heating time. The heating element temperature values ​​obtained, usually using a thermocouple, direct measurement. In this way, it is very inconvenient to work, the consumption of thermocouples is very large, but once the broken even easy to cause product quality accidents, but also for larger size