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利用 γ射线在泥沙中的衰减规律和水位测量方法 ,设计了径流泥沙含量和径流流量全自动测量系统。该系统包括自动采样、自动测量、数据分析输出及查询、操作控制系统等 4个子系统。实现了实时、快速、动态地测量坡面径流流量与泥沙含量以及测量数据自动存取和远距离传输。大量试验测试表明该系统测量历时短、数据传输快捷、测量结果准确。系统不仅适合于室内土壤侵蚀试验中泥沙含量与流量的测量 ,而且可用于野外坡面土壤侵蚀试验小区长期定点监测和其他各种试验研究
Using the attenuation law of gamma rays in sediment and the water level measurement method, an automatic measurement system of runoff sediment concentration and runoff flow was designed. The system includes four subsystems of automatic sampling, automatic measurement, data analysis output and query, operation control system. The real-time, fast and dynamic measurement of slope runoff and sediment content as well as the automatic access and long-distance transmission of measured data are realized. A large number of tests show that the measurement system lasted a short time, data transmission speed, accurate measurement results. The system is not only suitable for the measurement of sediment content and flow rate in indoor soil erosion test but also for long-term fixed point monitoring and other various experimental studies