放大系统在惠斯通电桥灵敏度研究中的应用

基于惠斯通电桥原理,在电位比较的基础上,加入了放大系统,通过调节放大系统的电阻,得出了在该模型下且在一定范围内,惠斯通电桥灵敏度具有一定的可调性,并发现在该模型下与待测电阻同路的电阻阻值与待测电阻阻值越接近越能获得高灵敏度,同时给出了此模型最佳适用条件。

Amplifying System in the Application in the Study of the Sensitivity of Wheatstone Bridge

The experiment based on the principle of Wheatstone bridge,the potential on the basis of comparison,joined the amplification system,by adjusting the amplification system for adjusting resistance,the voltage sensitivity of Wheatstone bridge in the model and in a certain range,the sensitivity of Wheatstone bridge has definite adjustability,and found in the model with the measured resistance of the road the resistance and the resistance is closer to the more can obtain high sensitivity,at the same time it gives the model of optimum application conditions.