趙建華1，王露1，阮哲偉 2，管磊2，孫圣舒2，王東1，劉上瑜2

　　(1. 江蘇省水文水資源勘測局宿遷分局，宿遷 223800)

　　(2. 南京昊控軟件技術有限公司，南京 210000)

　　摘要：基于光學透射原理設計研發的泥沙含量測量系統采用整體浸沒式測量，具有量程大、精度高、響應快和網頁實時展示數據等特點，能夠滿足特定河湖區域泥沙含量的測量需求。詳細介紹整套系統的測量原理和構成。通過比對實驗驗證該技術在實際運用中的精度較高，測量值與真實值的相對誤差能夠達到8%以內。這項技術可以作為一種新型量測手段代替人工取樣方法運用于泥沙含量測量。這套系統現已部署于江蘇省沭陽水文水資源監測中心新沂河測量斷面，進行泥沙含量的24 h在線監測。在實時監測過程中在線監測結果定期和人工取樣結果進行數據比對，兩者之差在10%以內。并且利用系統進行多點測量，研究泥沙含量在不同深度下的歷時變化曲線，繪制測量斷面的垂向泥沙含量剖面曲線。

　　關鍵詞：光學透射;泥沙含量;河湖監測;光纖束;管理平臺

　　中圖分類號：P332.5 文獻標識碼：A

　　Application of new optical transmission measurement technology in sediment content monitoring

　　ZHAO Jianhua1, WANG Lu1, RUAN Zhewei2, GUAN Lei2, SUN Shengshu2，WANG Dong1, LIU Shangyu2

　　(1.Suqian Branch of Jiangsu Province Hydrology and Water Resources Investigation Bureau, Suqian 223800, China;

　　2. Nanjing Hawksoft Technology Co., Ltd., Nanjing 210000, China)

　　Abstract: Based on the optical transmission principle, the sediment content measurement system uses full immersion measurement, which has the characteristics of large measuring range, high precision, fast response and real-time data display. The system can meet the measurement demands of sediment content in specific rivers and lakes. This paper introduces the measurement principle and composition of the whole system in detail. The comparison experiments show that this technology has high accuracy in practice, and the relative error between measured value and actual value is within 8%. This technology can be used as a new measurement method instead of manual sampling method to measure sediment load. This system has been applied in the measurement cross-section of Xinyi River managed by Hydrology and Water Resources Monitoring Center in Shuyang, Jiangsu Province, to monitor sediment content around the clock. During real-time monitoring, comparison with manual sampling data is carried out, and the difference is less than 10%. Multi-point measurement is also carried out to study the temporal variation curve of sediment content at different depths, and profile of vertical sediment content at the measurement cross-section is plotted.

　　Key words: optical transmission;sediment content;river and lake monitoring;fiber bundles;management platform