【摘要】 本文介绍了库仑滴定终点判定的原理,分析了在COD测量中测量电极的输出电压的变化规律,提出了用硬件电路和软件处理判终的方法,给出了三种硬件判终和两种软件判终方案.文中对这些方案的特性进行了分析,特别是对第三种判终方案——滞后判终进行了深入的讨论.更多还原

【Abstract】 The principle of end-point decision for Coulomb titration is described and the voltage variation on indicative electrodes in COD measurement is discussed. The method of using hardware circuit and software processing to realize end-point decision of Coulomb titration is proposed. Three different hardware circuits and two different software processings are given with one of the hardware circuits discussed at some length.更多还原