中文摘要：

针对于窨井中的特殊环境,综合几种液位测量计,该文设计了一种基于霍尔开关器件的液位测量传感器;详细讨论了整体测量装置构成,并结合霍尔开关的测量原理,具体分析了核心测量电路的设计。最后通过实验测试数据验证整个检测装置的可行性。

英文摘要：

The authors： design a Hall-style liquid level sensor based on the special surroundings of drain well,discuss the overall composition of measurement devices, introduce its measuring principle and the core meas- urement circuit, analyze the resolution of the experimental data in this paper.