为了研究腐蚀条件下储罐声发射检测泄漏信号的特征，利用具有一定腐蚀程度的储罐模型，分别在无泄漏、滴漏、线状泄漏三种工况下进行声发射检测试验并对信号进行分析。试验结果表明，有泄漏时撞击数和事件数会明显增加，并且在定位图中会出现明显的事件聚集，泄漏信号的参数范围与腐蚀信号基本相同。因此在实际检测中，虽然泄漏信号与腐蚀信号难以区分，但是从定位图以及撞击数、事件累积数可以综合评定储罐的腐蚀和泄漏情况。

There often exist leakage and corrosion at the same time in the tank bottom. In order to study the characteristics of leak under the condition of corrosion, experiments of acoustic emission detection were implemented with a storage tank model, which was subjected with certain degree of corrosion and was constructed in laboratory, under three conditions: without leak, drip and linear leak. Results show that the number of AE hit and event significantly increases under leak condition, and gathered events obviously appear in the location map. AE signal parameter ranges of corrosion and leakage are basically the same. Therefore, though distinguish between corrosion and leak signal is difficult, tank quality can still be correctly evaluated from AE test.