The contrast of galvanic current determined by ACM to corrosion rate of A3 steel showed that it was practicable to monitor corrosion of rain with ACM.

• ACM测量的电偶电流随雨水pH值的变化与失重法测量的A3钢的腐蚀速率随雨水pH值变化的结果对比表明，利用ACM监测降雨对A3钢的腐蚀性是可行的。