一、原理及校准方法： 根据ＪＪＧ７５ ９５《标准铂铑１０－铂热电偶检定规程》将标准和被检放入同一检定炉温场，使热电偶的测量端达到热平衡，应用比较分度法对二等标准铂铑１０－铂热电偶进行分度。 二、数学模型： 在通常情况下，标准热电偶只用于在三个固定点上的传递， First, the principle and calibration methods: According to JJG75 95 “standard platinum and rhodium 10-platinum thermocouple test procedures,” the standard and were placed in the same test furnace temperature field, the thermocouple measurement end to achieve thermal equilibrium, the use of comparative indexing method Second-class standard platinum and rhodium 10-platinum thermocouple indexing. Second, the mathematical model: Under normal circumstances, the standard thermocouple only for the three fixed points on the transfer,