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Based on 8752 singlechip and micro differential pressure transformer produced by American FOXBORO, a high precision medium-pressure type of leak detector was developed. 介绍了基于8752单片机和美国FOXBORO公司微差压变送器研制的高精度中压型智能测漏仪，论述了其工作原理、气路结构、硬件电路设计及系统软件设计。