公开(公告)号：US20060227327A1

公开(公告)日：2006-10-12

申请号：US11101913

申请日：2005-04-08

Applicant: Mark McNeal ,  Peter Loges ,  Irina Puscasu ,  James Daly ,  Edward Johnson

Inventor： Mark McNeal ,  Peter Loges ,  Irina Puscasu ,  James Daly ,  Edward Johnson

IPC: G01N21/59 ,  G01N21/03

CPC classification number: G01N21/031 ,  G01N21/3504

Abstract: An absorption spectroscopy apparatus including a sample cell having a central axis, and a side wall coaxially positioned about the axis. The side wall defines a generally circular cross-section of the cell as taken along a plane extending perpendicular to the axis, wherein the generally circular cross-section of the sample cell has an average radius. The side wall includes a plurality of light reflective segments arrayed about the axis, wherein each reflective segment has a cross-section taken along a plane extending perpendicular to the axis of the cell that is concave with respect to the axis. The concave cross-section of each segment has an average radius that is unequal to the average radius of the generally circular cross-section of the sample cell. Among other aspects and advantages, the apparatus of the present disclosure is able to use incoherent, non-collimated light sources while maintaining high optical throughput efficiencies.

Abstract translation: 一种吸收光谱仪，包括具有中心轴的样品池和围绕轴线同轴定位的侧壁。 侧壁限定了沿着垂直于轴线延伸的平面截取的电池的大致圆形横截面，其中样品池的大致圆形横截面具有平均半径。 所述侧壁包括围绕所述轴线排列的多个光反射段，其中每个反射段具有垂直于所述单元轴线延伸的平面截取的横截面，该平面相对于所述轴线是凹的。 每个段的凹截面的平均半径不等于样品池的大致圆形横截面的平均半径。 除了其它方面和优点之外，本公开的装置能够使用非相干的非准直光源，同时保持高的光通量效率。