利用密度－厚度联合补偿和厚度加权的办法，实现了适于传输皮带上应用的不连续、不规则动态物料的中子测水系统的在线测量。结果表明，当料厚＞２ｃｍ和水分＞６％时，其测量精度＜２．５％。该精度已能满足许多应用部门的要求。目前，该系统已在金川公司试运行近３个月，其结果与烘干法的结果吻合较好。 By using the combination of density and thickness compensation and thickness weighting, an on-line measurement of neutron water measuring system suitable for conveying discontinuous and irregular dynamic materials applied on the belt is realized. The results show that when the material thickness> 2cm and moisture> 6%, its measurement accuracy <2.5%. The accuracy has been able to meet the requirements of many applications. At present, the system has been Jinchuan company trial run nearly 3 months, the results of the drying method and the results of the good agreement.