1概述流量遥测系统是为明渠渠道量水而研制的，主要适用于环保排污监测、农田灌溉、工业和城市供水等领域。系统利用液位、闸位传感器和遥测、无线通讯、计算机技术结合水力学试验研究的成果组成遥测网络，通过计量段上、下游水位两参数或上、下游水位、闸位三参数完成对瞬时流 1 Overview The telemetry system is developed for measuring the quantity of water in the open channel. It is mainly used in the fields of environmental monitoring, farmland irrigation, industrial and urban water supply. The system uses the results of liquid level, position sensor and telemetry, wireless communication and computer technology combined with hydraulics experimental research to form a telemetry network. Through the measurement of upper and lower water level two parameters or upper and lower water level,