热电偶是将热能转换为电能，用所产生的热电势测量温度，热电偶的热电势是热电偶工作端的两端温度函数的差，特点：装配简单，更换方便；压簧式感温元件，抗震性能好；测量范围大（－200℃～1300℃,特殊情况下－270℃～2800℃）；机械强度高，耐压性能好；耐高温可达2800度。
Thermocouple is converted to electricity, the heat generated by the thermoelectric power measuring temperature, thermocouple of thermoelectric power is the thermocouple work on both ends of the poor, temperature function characteristics: assembly simple and easy to change, The compression spring type feeling temperature elements, seismic performance is good, Measurement range (- 200 ℃ ~ 13 ℃, special cases - 270 ℃ ~ 2800 ℃); High mechanical strength, compression performance is good, High temperature resistant can 280 degrees.
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