采用单臂电桥实现高精度温度检测的软件补偿技术

Realization of High Precision Temperature Detection With Single-Armed Bridge Circuit By Software Compensation Technique

单臂电桥测温电路结构简单 ,但存在误差而难以实现高精度温度检测。文中介绍一种新的、能从根本上消除误差的软件补偿方法 ,具有实现成本低、测温精度高、易于实现等优点 ,已在实际工程中取得良好推广应用。

Although single-armed bridge circuit is easy to construct, but is not suitable for high precision temperature detection because of its inner error. In this paper, a new method of software compensation technique is presented, which has the merits of low cost 、high accuracy and can be easily realized. The new method has abstained good effects in real application.