本文叙述只需要很小保护电流的设备所使用的一种小型阴极保护系统。一种微型电子线路控制从铂包覆铌阳极流出的电流以提供所需阴极电位。通过装有不同电阻率(即硬度)水的家庭用热水槽得到的实验数据说明该系统的效果良好。 This article describes a small cathodic protection system used by devices that require very little current protection. A miniature electronic circuit controls the current flowing from the platinum-coated niobium anode to provide the desired cathode potential. Experimental data obtained from domestic hot water tanks with different resistivities (ie hardness) of water indicate that the system works well.