The Online System for Measuring Sediment Concentration in Xiaolangdi Reservoir
The detection of sediment content in the Xiaolangdi Reservoir is the key parameter to water and sediment management. According to the requirement of the Xiaolangdi Reservoir, the online sediment concentration measuring system is designed. This paper particularly introduces principle of the capacitive differential pressure sensor, PLC hardware design and monitoring software design. The system can detect not only sediment, but also the depth of the measuring point, the water temperature and gradient to enhance detection. This system uses electromotor to drag sensors and the sediment content can be measured at different depths. Through data integration and analysis by software, the spatial and temporal distribution of sediment content can be shown in the visual display monitor interface. During the design process, a large number of calibration experiments were carried out. The purpose of experiment is to find the laws and traditions through a large amount of data. The experiment uses the bottles to calibrate in order to improve measurement accuracy and stability. The system can overcome the effects of different environments and work steadily. So it has reached the design requirement. As compared to similar products, this system is more suitable for the detect sediment concentration in the Xiaolangdi reservoir area.
Xiaolangdi Reservoir sediment concentration capacitive differential pressure online measure PLC
Li Li Liu Mingtang Zhao Rong He Xiaoru Kang Bingdong Li Ye
Key Laboratory of Yellow River Sediment Research of the Ministry of Water Resources, Yellow River In Department of Information Engineering, North China University of Water Conservancy and Electric Powe School of Information Science & Technology, Southwest Jiaotong University, Chengdu, 611756, China
国际会议
郑州
英文
1755-1761
2009-10-20（万方平台首次上网日期，不代表论文的发表时间）