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针对铁桶微漏在线逐一检测问题，就其基本原理、检测方法以及相应的关键技术进行了研究，设计了实用的有单片机控制的差压法微漏自动检测系统．介绍了测量气路、系统软、硬件组成及参数确定等关键技术．
In order to solve the problem of on-line detection of microleakage of metal drums one by one, the basic principle, detection methods and corresponding key technologies are studied. The practical micro-leakage detection system with single-chip microcomputer control is designed. The key technologies of measurement gas path, system software and hardware composition and parameter determination are introduced.