公开(公告)号：US07403283B2

公开(公告)日：2008-07-22

申请号：US11064484

申请日：2005-02-24

Applicant: Gloria Sogan ,  Julien Bounouar ,  Jean-Pierre Desbiolles ,  Isabelle Gaurand

Inventor： Gloria Sogan ,  Julien Bounouar ,  Jean-Pierre Desbiolles ,  Isabelle Gaurand

IPC: G01J3/30

CPC classification number: G01J3/443 ,  G01N21/274 ,  G01N21/68 ,  G01N2201/121 ,  G01N2201/1218 ,  G01N2201/127

Abstract: A method and apparatus for detecting minority gaseous species in a mixture by light-emission spectroscopy by means of an optical spectrometer (8), in which the radiation emitted by a plasma (4) present in the gas mixture for analysis is used and, in the spectrum of the radiation, lines are identified of a majority gaseous species that present amplitudes that are sensitive to the presence of a minority species, and information about the concentration of a minority gaseous species is deduced from the amplitude(s) of the sensitive line(s). This makes it possible to monitor minority gaseous species in real time.

Abstract translation: 一种通过光谱仪（8）通过发光光谱检测混合物中的少数气态物质的方法和装置，其中使用由用于分析的气体混合物中存在的等离子体（4）发射的辐射，并且在 放射线的光谱确定出大多数气态物质，其呈现对少数物种的存在敏感的振幅，关于少数气态物质的浓度的信息从敏感线的幅度推导出 （s）。 这使得可以实时监测少数气态物质。

公开(公告)号：US06710347B1

公开(公告)日：2004-03-23

申请号：US10096227

申请日：2002-03-12

Applicant: Gideon Eden

Inventor： Gideon Eden

IPC: G01J502

CPC classification number: G01N21/3504 ,  G01N21/33 ,  G01N2021/3177 ,  G01N2201/0692 ,  G01N2201/1211 ,  G01N2201/1218

Abstract: An apparatus and method for detecting at least one component gas in a sample includes a radiation source for providing radiation along an optical path in a pre-selected spectral band having at least one absorption line of the component gas to be detected and an optical detector for detecting radiation at the optical path. A sample chamber is positioned in the optical path between the source and the optical detector to contain a quantity of a sample gas. At least one gas cell enclosing an amount of the gas to be detected is fixedly positioned in the optical path in series with the gas chamber. A mathematical relationship is determined between the detected radiation and the concentration of a sample gas filling the sample chamber.

Abstract translation: 用于检测样品中的至少一种组分气体的装置和方法包括：辐射源，用于沿预先选择的光谱带沿着光路提供辐射，所述光谱带具有待检测的成分气体的至少一个吸收线;以及光学检测器， 检测光路上的辐射。 样品室位于源和光学检测器之间的光路中，以容纳一定量的样品气体。 包围待检测气体量的至少一个气室牢固地定位在与气室串联的光路中。 在检测到的辐射与填充样品室的样品气体的浓度之间确定数学关系。

公开(公告)号：US20040042079A1

公开(公告)日：2004-03-04

申请号：US10233940

申请日：2002-09-03

Inventor： John Phillip Ertel ,  William Richard Trutna JR.

IPC: G02B005/18 ,  G02B027/42 ,  G02B027/44

CPC classification number: G02B7/003 ,  G01N21/45 ,  G01N2021/4106 ,  G01N2201/1211 ,  G01N2201/1214 ,  G01N2201/1218 ,  G01S7/497 ,  Y10S359/90

Abstract: Optical systems are provided. One such optical system includes an optical source that propagates a source beam of light. A diffracting component is optically coupled to the optical source and is operative to receive the source beam and produce a diffracted beam. A target is located to receive the diffracted beam. Additionally, a compensating system repositions at least one of the optical source, the diffracting component, and the target in response to a detected change in refractive index of a medium through which the diffracted beam propagates so that the diffracted beam continues to be received by the target. Methods and other systems also are provided.

Abstract translation: 提供光学系统。 一种这样的光学系统包括传播源光束的光源。 衍射组件光耦合到光源并且可操作地接收源光束并产生衍射光束。 目标位于接收衍射光束。 另外，补偿系统响应于所检测到的衍射光束传播的介质的折射率变化，重新定位光源，衍射部件和靶中的至少一个，使得衍射光束继续被 目标。 还提供了方法和其它系统。

公开(公告)号：US4881183A

公开(公告)日：1989-11-14

申请号：US173419

申请日：1988-03-25

Applicant: David E. Groe

Inventor： David E. Groe

IPC: G01N21/35

CPC classification number: G01N21/3504 ,  G01N2201/1218 ,  G01N2201/12753

Abstract: A computerized emissions tester determines concentrations of HC, CO, and CO2 in exhaust emissions. An IR test bench assembly develops an analog voltage representative of the concentration of a particular gas in a sample gas of known concentration. Data related to calibration pressure, voltage offset and voltage gain are stored in non-volatile memory EEPROM. Algorithms relating voltage and concentration of the particular gases are included in software. The pressure of an exhaust emission is compared with the calibration pressure data in memory and a correction is applied to the tester output. The data relating to the voltage offset and gain factor are also used to compensate the tester output.

Abstract translation: 电脑排放测试仪确定废气排放中HC，CO和CO2的浓度。 IR测试台组件开发代表已知浓度的样品气体中特定气体的浓度的模拟电压。 与校准压力，电压偏移和电压增益相关的数据存储在非易失性存储器EEPROM中。 涉及特定气体的电压和浓度的算法包括在软件中。 将废气排放的压力与存储器中的校准压力数据进行比较，并将校正应用于测试仪输出。 与电压偏移和增益因子相关的数据也用于补偿测试仪输出。