数字式明渠污水流量计数据采集处理系统研究

Research on the Acquisition and Processing System of Digital Flow-meter for Open Channel Sewage

针对国家污水流量计量技术发展不完善的现状,开发了一套依据检索式数字水位传感器的数字采样原理,采用低功耗智能芯片控制的新型数字式明渠污水流量计的数据采集处理系统。系统依据巴歇尔槽流量计量原理,与巴歇尔槽结合使用,解决了模拟式明渠污水流量计数据采集系统中存在的信号采集易受水质及水中泡沫影响、抗干扰性能差、准确度低、系统功耗大等问题。

Considering the current status of the imperfection in sewage flow measurement techniques development, we developed a new data acquisition and processing system of flow-meter for open channel sewage, which is based on digital sampling theory of retrieval type water level sensor and controlled by low-power smart chip. By the principle of Parshall flume flow measurement,this system is used in conjunction with the parshall flume to solve the problems in the data acquisition simulative type flow-meter for open channel sewage, such as the impact of water quality and bubble on signal collecting,poor anti-jamming performance, low accuracy and high-power consumption.