目前,我国即将实行热电偶、热电阻新的国家技术标准,普遍采用测温元件的新分度号,在选用测温元件及与其配套的二次仪表时,正确选择测温元件分度号就更为重要。所谓测温元件的分度号,就是用于表示该测温元件热电特性的符号。测温元件按分度号给出其热电特性与温度相对应关系的分度表。分度表是根据测温元件材料的物理性能及化学 At present, China is about to implement the new national thermocouple, RTD technical standards, the general use of temperature division of the new sub-index number, temperature components and their matching secondary instrument selection, the correct choice of temperature measurement device sub-degree number More important. The so-called thermocouple indexing number is used to indicate the thermocouple thermoelectric properties of the symbol. Thermocouple temperature coefficient according to index given its thermoelectric characteristics and temperature corresponding index table. Index table is based on the physical properties of the temperature measurement element materials and chemistry