本文由电路原理和数学方法推导出集电装置的接电阻对电桥输出信号精度的影响非常小的结论。
In the light of circuit principles, the author has mathematically ascertained that the contact resistance in an integrated circuit has little effect on the accuracy of output signals from the bridge.
本文中的电压传感器采用电阻分压，可将初级电压直接转化为10v以内的微信号，以供测量保护用，装置具有体积小、传输频带宽、不存在饱和问题、无谐振点等优点。
By adopting resistance divider, the voltage sensor designed in this paper can transform primary voltage into micro-signal less than 10v, which can be used in measurement system directly.
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