公开(公告)号：US5686988A

公开(公告)日：1997-11-11

申请号：US668509

申请日：1996-07-02

Applicant: W. Ray Garrett

Inventor： W. Ray Garrett

IPC: G01J3/443 ,  G01J3/45 ,  G01J3/30 ,  G01J1/58 ,  G01J3/42

CPC classification number: G01J3/443 ,  G01J3/45

Abstract: A method and apparatus for measuring partial pressures of gaseous components within a mixture. The apparatus comprises generally at least one tunable laser source, a beam splitter, mirrors, optical filter, an optical spectrometer, and a data recorder. Measured in the forward direction along the path of the laser, the intensity of the emission spectra of the gaseous component, at wavelengths characteristic of the gas component being measured, are suppressed. Measured in the backward direction, the peak intensities characteristic of a given gaseous component will be wavelength shifted. These effects on peak intensity wavelengths are linearly dependent on the partial pressure of the compound being measured, but independent of the partial pressures of other gases which are present within the sample. The method and apparatus allow for efficient measurement of gaseous components.

Abstract translation: 用于测量混合物中气态组分的分压的方法和装置。 该装置通常包括至少一个可调激光源，分束器，反射镜，滤光器，光谱仪和数据记录器。 沿着激光的路径沿正向测量，被测量的气体成分的波长特性的气体成分的发射光谱的强度被抑制。 在向后的方向上测量，给定气体成分的峰值强度特性将波长偏移。 这些对峰强度波长的影响线性地取决于待测化合物的分压，而与样品中存在的其它气体的分压无关。 该方法和装置允许有效测量气体组分。