公开(公告)号：WO1990005901A1

公开(公告)日：1990-05-31

申请号：PCT/US1989005290

申请日：1989-11-22

Applicant: WEST LODGE RESEARCH

Inventor： WEST LODGE RESEARCH ,  SWANSON, Caleb, V., Jr.

IPC: G01J01/00

CPC classification number: G01N21/3504 ,  G01N2021/0314 ,  G01N2021/178 ,  G01N2021/1793 ,  G01N2021/3513

Abstract: A remote gas analyzer for motor vehicle exhaust emission surveillance in which a planar array (22) of gas analyzer beams (10) intersects substantially an entire cross sectional segment of an exhaust gas plume (12) in order to determine the volume concentration of gas pollutants in the exhaust. In a further variation using more readily available equipment to detect the less prevalent pollutants, the planar array determines the change in amount per unit volume of a first pollutant emitted by a motor vehicle passing the array. The first pollutant having a relatively high and more easily detectable concentration. A second, multispectral gas analyzer beam intersects the exhaust to determine the change in concentration of the less prevalent pollutants with respect to ambient, and also determines the change in concentration of the first pollutants. The ratio of the change in the first pollutant's weight per unit volume to its change in concentration as determined by the second analyzer is used to determine the change in the amount per unit volume of the remaining pollutants.

Abstract translation: 一种用于机动车尾气排放监视的远程气体分析器，其中气体分析器梁（10）的平面阵列（22）基本上与废气羽流（12）的整个横截面段相交，以便确定气体污染物的体积浓度 在排气中。 在使用更容易获得的设备来检测较不普遍的污染物的另一变型中，平面阵列决定了通过阵列的机动车辆发射的第一污染物的每单位体积的量的变化。 第一污染物具有较高且更易于检测的浓度。 第二个多光谱气体分析仪束与排气相交，以确定较不普遍的污染物相对于环境的浓度变化，并且还确定第一污染物的浓度变化。 使用由第二分析仪确定的第一污染物质量每单位体积重量与其浓度变化的比率来确定剩余污染物每单位体积量的变化。