电桥灵敏度的桥路分析及应用

ANALYSIS AND APPLICATION OF BRIDGE CIRCUIT IN BRIDGE SENSITIVITY

分析了直流惠斯登电桥的电桥桥路及平衡条件,详细计算了电阻的微小变化对电桥电压灵敏度的影响,找出了提高电桥灵敏度的方法,简要说明了通过合理调整电桥桥臂元件可以使惠斯登电桥在工业和实验中广泛应用。

This article analyzes the direct bridge circuit of Hyston's bridge and its balance conditions and calculates that the tiny change of electric resistance has an influence on the bridge sensitivity in detail. It has also found the methods to increase the bridge sensitivity. Meanwhile, it illustrates briefly the reasonable adjustment on the components of bridge arms will make Hystoris bridge widely applied in the industry and experiment.