控制电位型水中臭氧电化学传感器的试验研究

Experimental researches on controlled potential electrochemical sensor for ozone in water

阐述了控制电位型水中臭氧电化学传感器的结构及其原理,通过对循环伏安曲线、极化曲线和不同电位时的电流响应对比曲线的综合分析,得出控制电位为0.50 V时传感器电流响应线性度好、灵敏度高。此外,设计并应用了电位控制和测量电路,实现了对传感器的电位控制以及输出信号的处理。

The structure and principle of controlled potential electrochemical sensor for ozone in water are described. By integrated analysis of cyclic vohammetry curve, polarization curve and current response curve versus different Potential,it is indicated that when controlled Potential selected is 0. 50 V, the current response of the sensor is a better linearity and higher sensitivity. Moreover, the potential control circuit and signal measuring circuit are designed and applied in controlling Potential and processing the output signal of the sensor.