Mass content analysis method for three substances mixed in pipeline

The invention discloses a mass content analysis method for three substances mixed in a pipeline, which comprises the following steps: respectively measuring data of a single substance of a radioactive source penetrating through the three substances and data of a single substance of a back scattering three substances to obtain a group of six data: N11, N12, N13, N21, N22 and N23; respectively measuring data of the radioactive source penetrating through the three mixed substances and data of the back-scattering three mixed substances to obtain a group of two data N and N inverse; establishing a data model according to the ray intensity after penetrating through the changed three substances, and analyzing and calculating the percentage mass content of the mixed three substances. By means of the method, the mass content of the mixed three substances can be accurately analyzed, operation is easy, and the applicability is wide. 本发明公开了一种管道内混合三物质的质量含量分析方法，包括如下步骤，分别测量放射源穿透三物质的单种物质的数据和反散射三物质单种物质的数据，得到一组6个数据N11、N12、N13、