公开(公告)号：US4772848A

公开(公告)日：1988-09-20

申请号：US010910

申请日：1987-02-05

申请人： Heinz Hummel

发明人： Heinz Hummel

IPC分类号： G01N27/74 ,  G01N7/00 ,  G01R33/12

CPC分类号： G01N27/74

摘要： A paramagnetic measuring instrument comprises a magnetic circuit, formed from ferromagnetic material and having pole ends defining a discontinuity, and a gas measuring chamber disposed in the discontinuity between the pole ends. The measuring chamber includes a frame shaped outer part formed from nonmagnetic material and having a central opening extending between the pole ends; two ferromagnetic pole shoes each respectively disposed adjacent a separate one of the pole ends and extending into the opening of the outer part; two distribution channels disposed in the outer part on opposite sides of the measuring gap for supplying a measuring gas and a comparison gas, respectively, to the measuring gap; and inlet and outlet gas lines for supplying the measuring gas and the comparison gas, respectively, and removing the mixture formed from the measuring and comparison gases. According to the invention, the cross section of the opening of the outer part of the measuring chamber, as well as the pole faces, are rectangular. Furthermore, the distribution channels extend in straight lines, parallel to one another, at the two opposite shorter sides of the measuring gap. The distribution channels have a length corresponding to the length L of the shorter sides and have a height h and a depth t, respectively, which in each case is greater than the width W of the measuring gap.

摘要翻译： 顺磁测量仪器包括由铁磁材料形成并具有限定不连续点的极端的磁路和设置在极端之间的不连续处的气体测量室。 测量室包括由非磁性材料形成并具有在极端之间延伸的中心开口的框形外部; 两个铁磁极靴分别设置成邻近所述极端中的一个并延伸到所述外部部分的开口中; 两个分配通道设置在测量间隙的相对侧的外部部分中，用于将测量气体和比较气体分别提供给测量间隙; 以及用于分别供应测量气体和比较气体的入口和出口气体管线，并且去除由测量和比较气体形成的混合物。 根据本发明，测量室的外部部分的开口以及极面的横截面是矩形的。 此外，分配通道在测量间隙的两个相对短边处彼此平行延伸。 分配通道具有与短边的长度L对应的长度，并且分别具有高度h和深度t，每个高度h和深度t在每种情况下都大于测量间隙的宽度W.