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1. 发明授权

US4823624A Material layer volume determination with correction band 失效
标题翻译：材料层体积确定与校正带
公开(公告)号：US4823624A
公开(公告)日：1989-04-25
申请号：US248632
申请日：1988-09-26
申请人： Rodolfo R. Rodriguez , Matthew W. Lesniesky , Charles F. Galanaugh , Robert A. Levine , Stephen C. Wardlaw , Theodore Juraschek
发明人： Rodolfo R. Rodriguez , Matthew W. Lesniesky , Charles F. Galanaugh , Robert A. Levine , Stephen C. Wardlaw , Theodore Juraschek
IPC分类号： B01L3/14 , G01N15/05 , A61B5/14
CPC分类号： B01L3/50215 , G01N15/05
摘要： A centrifuge tube is used to hold a mixture of several constituents, and also contains a generally cylindrical float. The float settles, after centrifugation, into the zone occupied by the constituent whose volume is to be measured. The constituent layer will settle, after centrifugation, into the annular space between the tube bore and the outside of the float, and will be expanded axially due to the restricted volume of the annular space. The degree of expansion is dependent upon the respective sizes of the float O.D. and the tube bore ID, both of which must be closely controlled for accurate results. A known volume of a control material is placed in the tube to settle into the annular space during centrifugation in an area thereof outside of the constituent layer zone. The length of the band of the control material is measured after centrifugation and is compared to a known length which will result if the annular space is of the proper target volume. A correction factor is thus obtained and applied to all of the other constituent layers which were measured. The band thus forms a varying reference which reflects the actual volume of the annulus.
摘要翻译：离心管用于容纳几种成分的混合物，并且还包含一般为圆柱形的浮子。离心后，浮子沉降到被测量体积所占据的区域内。构成层在离心后将沉淀到管孔和浮体外部之间的环形空间中，并且由于环形空间的体积受限制而将轴向膨胀。膨胀程度取决于浮子O.D的各自尺寸。和管孔ID，两者都必须严格控制以获得准确的结果。将已知体积的对照材料放置在管中，以便在构成层区域外的区域中离心期间沉降到环形空间中。在离心后测量对照材料带的长度，并将其与已知的长度进行比较，如果环形空间具有适当的目标体积，则该长度将产生。因此获得校正因子并将其应用于所测量的所有其它构成层。因此，带形成变化的参考，其反映环的实际体积。

2. 发明授权

US4774965A Material layer volume determination with correction band 失效
标题翻译：材料层体积确定与校正带
公开(公告)号：US4774965A
公开(公告)日：1988-10-04
申请号：US68572
申请日：1987-07-01
申请人： Rodolfo R. Rodriguez , Matthew W. Lesnieskl , Charles F. Galanaugh , Robert A. Levine , Stephen C. Wardlaw , Theodore Juraschek
发明人： Rodolfo R. Rodriguez , Matthew W. Lesnieskl , Charles F. Galanaugh , Robert A. Levine , Stephen C. Wardlaw , Theodore Juraschek
IPC分类号： G01N9/12 , B01L3/14 , G01N9/36 , G01N15/05 , G01N33/48 , G01N33/49 , A61B5/14
CPC分类号： B01L3/50215 , G01N15/05
摘要： A centrifuge tube is used to hold a mixture of several constituents, and also contains a generally cylindrical float. The float settles, after centrifugation, into the zone occupied by the constituent whose volume is to be measured. The constituent layer will settle, after centrifugation, into the annular space between the tube bore and the outside of the float, and will be expanded axially due to the restricted volume of the annular space. The degree of expansion is dependent upon the respective sizes of the float O.D. and the tube bore ID, both of which must be closely controlled for accurate results. A known volume of a control material is placed in the tube to settle into the annular space during centrifugation in an area thereof outside of the constituent layer zone. The length of the band of the control material is measured after centrifugation and is compared to a known length which will result if the annular space is of the proper target volume. A correction factor is thus obtained and applied to all of the other constituent layers which were measured. The band thus forms a varying reference which reflects the actual volume of the annulus.

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