热电偶也叫温差电偶,是最早出现的一种热电探测器件。热电偶是温度测量中应用最广泛的温度器件,它的主要特点就是测温范围宽,性能比较稳定,同时结构简单,动态响应好,更能够远传4-20mA电信号,便于自动控制和集中控制。本文中根据热电偶的工作原理,对应用实例中出现的故障现象进行分析处理。 Thermocouple, also called thermocouple, is one of the earliest thermoelectric detection devices. Thermocouple temperature measurement is the most widely used temperature device, its main feature is the wide temperature range, the performance is relatively stable, simple structure, good dynamic response, more remote 4-20mA electrical signals to facilitate automatic control and concentration control. In this paper, based on the working principle of thermocouple, the application example of the phenomenon of failure analysis and processing.