公开(公告)号：US4566114A

公开(公告)日：1986-01-21

申请号：US411403

申请日：1982-08-25

申请人： John S. Watt ,  Reginald A. Fookes ,  Vilis L. Gravitis

发明人： John S. Watt ,  Reginald A. Fookes ,  Vilis L. Gravitis

IPC分类号： G01N23/12 ,  G01N23/20

CPC分类号： G01N23/12

摘要： X- or .gamma.-ray scatter assemblies are used in quantitative determination of the concentration of ash in coke or coal. The assemblies each comprise an X- or .gamma.-ray source, an energy sensitive detector to detect X- or .gamma.-rays resulting from scatter in the coal or coke of X- or .gamma.-rays from the source, and shielding means adapted to reduce the intensity of direct X-rays or .gamma.-rays and to collimate partly the beam of X-rays and or .gamma.-rays to ensure maximized matched volumes for all assemblies and deep penetration in the coal. The assemblies are associated with an electronic analyzer adapted to select all or part of the detected X-ray or .gamma.-ray spectrum, thereby modifying the output of the assemblies. Two or more assemblies are employed in an apparatus and method for analyzing coal or coke.

摘要翻译： X或γ射线散射组件用于定量测定焦炭或煤中灰分的浓度。 组件各自包括X射线或γ射线源，能量敏感检测器，用于检测由来自源的X射线或γ射线的煤或焦炭中的散射而产生的X射线或γ射线;以及屏蔽装置， 直接X射线或γ射线的强度，并部分准直X射线和γ射线束，以确保所有组件的最大匹配体积和煤中的深度穿透。 组件与适用于选择全部或部分检测到的X射线或γ射线光谱的电子分析仪相关联，由此修改组件的输出。 在用于分析煤或焦炭的装置和方法中采用两个或更多个组件。

公开(公告)号：US4414472A

公开(公告)日：1983-11-08

申请号：US187884

申请日：1980-09-17

申请人： John S. Watt

发明人： John S. Watt

IPC分类号： G01N23/12 ,  G01N23/00

CPC分类号： G01N23/12

摘要： A method for determining the solids weight fraction of a slurry especially a coal slurry is described based on a measure of the concentration (wt/wt) of hydrogen in the slurry by neutron transmission or scatter. Accuracy of the method can be improved by combining the neutron measurement with a .gamma.-ray transmission or scatter measurement, and further improved by including a measurement of X-ray scatter or transmission. In the last mentioned case the mineral matter content of the coal in the slurry can also be determined.

摘要翻译： 基于通过中子传播或散射测量浆料中的氢浓度（wt / wt）的方法来描述用于确定浆料，特别是煤浆料的固体重量分数的方法。 通过将中子测量与伽玛射线或散射测量结合，可以提高该方法的精度，并通过包括X射线散射或透射的测量进一步改进。 在最后提到的情况下，也可以确定浆料中煤的矿物质含量。

公开(公告)号：US5025160A

公开(公告)日：1991-06-18

申请号：US359377

申请日：1989-05-31

申请人： John S. Watt

发明人： John S. Watt

IPC分类号： G01F1/704 ,  G01F1/712 ,  G01F1/74 ,  G01P5/00 ,  G01P5/18

CPC分类号： G01P5/18 ,  G01F1/7042 ,  G01F1/712 ,  G01F1/74 ,  G01P5/006

摘要： Time varying measurements indicative of the ratio of mass absorption coefficients of the components of a multiphase flow containing at least two liquid phases at two spaced apart locations are cross correlated to determine liquid flow velocity. The time varying measurements are provided by measuring the intensities of gamma-rays transmitted through a selected volume of the flow at two different gamma-ray energies. At least one of the gamma-ray energies has substantially different mass absorption coefficients in each of the two liquids. Gas velocity, when gas is present, and component fractions of all components are determined using a dual energy gamma-ray transmission technique and with the liquid flow velocity are used to derive mass flowrates.

摘要翻译： 指示在两个间隔开的位置处含有至少两个液相的多相流的组分的质量吸收系数的比率的时变测量是交叉相关的，以确定液体流速。 通过测量在两个不同的γ射线能量下通过选定体积的流量传输的伽马射线的强度来提供时变测量。 伽马射线能量中的至少一个在两种液体中的每一种中具有基本上不同的质量吸收系数。 使用双能伽马射线透射技术确定气体存在时的气体速度以及所有组分的组成部分，并使用液体流速来获得质量流量。