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近几年来,热电偶的类型急聚增多,为了避免混乱,合理地进行使用,必须了解它的类型及其使用特性、测量范围等。热电偶通常按术语分为贵金属热电偶、廉金属热电偶、高温或难熔金属热电偶,对于它的使用特性和测量范围等都要根据实际需要测量的温度而定。一般地,测量0～1000℃内的温度,使用中温热电偶,测量1000℃以上的,使用高温热电偶。然而,在电池负极生产中所用电炉(一般为沟槽式感应立式电炉)的使用温度是400～500℃。
In recent years, the type of thermocouple increased acute, in order to avoid confusion, reasonable use, we must understand its type and its use characteristics, measurement range. Thermocouples are usually divided into terms according to the terms precious metal thermocouple, low metal thermocouple, high temperature or refractory metal thermocouple, its use characteristics and measuring range, etc., according to the actual needs of the measured temperature. Generally, measure the temperature within 0 ~ 1000 ℃, use medium temperature thermocouple, measure above 1000 ℃, use high temperature thermocouple. However, the operating temperature of an electric furnace (typically a trench induction vertical furnace) used in battery negative production is 400 to 500 ° C.