热电阻测温电路设计

The design of a resistance temperature measurement circuit

本文提出了一种新的热电阻测量电路 ,克服了非平衡电桥桥臂电阻变化与输出电压的非线性关系 ,可调整零点温度 ,测量不同分度号的热电阻 ,具有很强的通用性和灵活性。

This article deals with the design of a new resistance temperature measurement circuit,which can eliminate the nonlinear relationship between the variation of resistance and the output voltage of the unbalanced bridge.The circuit is general and flexible,so that it is suitable for different types of resistance temperature detector.Besides,its zero temperature can be adjusted.