根据电导池等效电路分析，用正弦波交流电桥测定电导，若在每个周期的四分之一（或四分之三）处采样检测平衡，可排除电导池等效电路中的串联电容和并联电容的影响，并按此原理设计了测定电路，通过对模拟电导池和实际化学体系的测定试验，结果是满意的 Based on the equivalent circuit analysis of the cell, the conductance is measured with a sine-wave AC bridge. If the sample balance is equal to one quarter (or three quarters) of each cycle, the series capacitance in the cell equivalent circuit and Parallel capacitors, and according to the principle of the design of the circuit, through the simulation of the conductance cell and the actual chemical system of the test, the result is satisfactory