之前觉得可能是因为自己没有把法拉第笼外皮的氧化铝全部除掉, 但之前与Gamry technical staff的email内容告诉我, 问题不在于笼的表面是否是全部导电的..(staff的回复内容节选: An outside insulating layer, be it oxide or paint/coating, does not affect behavior. If, however, the Faraday cage becomes so oxidized that it is no longer conductive (under the oxide layer) or if a complete seam/edge is compromised, then performance can degrade. In general this is not a concern.)