基于统计理论数据融合的水流泥沙含量测量仪  

Intelligent instrument for measuring sediment concentration in flow-water based on data fused method of statistic theory

作　　者：李小昱[1] 雷廷武[2] 王为[1] 张军[1] 

机构地区：[1]华中农业大学工程技术学院,武汉430070 [2]中国农业大学水利与土木工程学院,北京100083

出　　处：《农业工程学报》2004年第5期110-113,共4页Transactions of the Chinese Society of Agricultural Engineering

基　　金：国家自然科学基金项目(40171062);中国科学院"引进国外杰出人才"项目(982602);中国科学院水利部西北水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点实验室项目(10501-92)

摘　　要：水流泥沙含量的测量在土壤侵蚀和水土保持研究中具有重要意义。采用自行研制的便携式水流泥沙含量测量仪测量了水流泥沙含量。结果表明,水流泥沙混合液质量与泥沙含量之间呈线性关系,可采用荷重传感器测量水流泥沙含量;通过采用基于统计理论的数据融合法来处理测量结果,可大大提高测量的准确性和重复性;其测量精度为0.63%,重复性误差小于0.49%;该测量系统为水流泥沙含量的快速、准确测量提供了一种新的、有效的方法。It is very important to measure sediment concentration in flow-water on studying on soil erosion and soil and water conservation. A new portable instrument was adopted to measure the sediment concentration. The result showed that the sediment concentration in flow-water was in linear correlation with the mass of mixed liquor. Weight sensor can measure the sediment concentration. Adopting data fusion method based on statistics theory to handle measurement result can greatly improve the measurement accuracy and minimize the repeat error. The measurement accuracy is 0.63% and the repeat error is 0.49%. This measurement system provides a new, valid method to speed the procedure and correct the measurement of sediment concentration in flow-water.

关 键 词：统计理论 数据融合 泥沙含量 荷重传感器 测量仪 

分 类 号：TP202[自动化与计算机技术—检测技术与自动化装置]