标准铜—铜镍(康铜)热电偶(以下简称T 型热电偶)使用范围一直是-200～0℃,随着科技事业的发展,一些跨正、负温区(以0℃为界)的工作温度计和精密测量迫切要求将它的使用范围向100℃延伸。但标准 T 型热电偶在-200～+100℃范围内可信度如何?为什么以 T 型热电偶作标准?经冷热冲击和长期使用 Standard copper - copper nickel (CONC) thermocouple (hereinafter referred to as T-type thermocouple) has been the use of -200 ~ 0 ° C, with the development of science and technology, some positive and negative temperature zone The work of thermometers and precision measurement is urgently required to extend its use to 100 ℃. However, the standard T-type thermocouple in -200 ~ +100 ℃ within the credibility of what? Why T-type thermocouple as a standard? Thermal shock and long-term use