不确定度为0.02℃的低成本精密多路测温仪

The Low-Cost and Precise Multichannel Thermometer with 0.02℃ of Undeterminedness

结合实例介绍了温度巡测仪中多路采样、转换单元、整机设计中如何利用多种补偿、自动校正等技术实现了以普通元器件和简洁线路获得高测温精度的方法.提供了详细的电路、参数和算式.

Combining with the practical examples the development of the temperature data logger is introduced. The sampling, converting units are presented. By using the technologies of various compensations, automatic correction in design of the whole unit, the high precise measurement is implemented with common-used components and simplified circuits. The detail circuits, parameters and formulas are provided.