数据采集系统中桥路自动调零的算法实现

Realization of the bridge circuit automatic zero adjust in the data acquisition system

本文主要阐述了数据采集系统的一般框架模型,介绍了传感器的标定和桥路平衡的原理,提出了一种桥路自动调零的算法。该算法采用软件自动控制的方法,完全实现了自动化,方便、快捷,大大提高了系统工作效率、降低了试验成本,同时也体现了“软件就是仪器”的原理思想。

This paper mainly describes the general model of the data acquisition system and the principle of sensor's Calibration and the Bridge Circuit's balance,proposes an algorithm of Bridge circuit's automatic zero adjust.The algorithm can realize bridge circuit's zero adjust automatically by adopting the software automatic control method.This method has advantages of convenient,efficient and can reduce the cost of experiment,meanwhile it exhibits the theory of 'the Software is the Instruments'.