本文通过对铂电阻测温系统的研究 ,提出一种通过软件实现的 ,利用两个非精确恒定温度环境进行标定的温度补偿算法 ,这种算法使补偿后的精度等级达到 0 .1% FS。本文给出的分析方法和措施 ,对其它受温度漂移影响的系统也有借鉴意义 Based on the research of platinum resistance temperature measurement system, a software temperature compensation algorithm based on two non-precision and constant temperature environments is proposed. The algorithm can make the compensation accuracy level reach 0.1% FS. The analysis methods and measures given in this article are also of reference to other systems affected by temperature drift