公开(公告)号：WO2008130727A2

公开(公告)日：2008-10-30

申请号：PCT/US2008051931

申请日：2008-01-24

Applicant: SPECTRASENSORS INC ,  LIU XIANG ,  ZHOU XIN ,  FEITISCH ALFRED ,  SANGER GREGORY M

Inventor： LIU XIANG ,  ZHOU XIN ,  FEITISCH ALFRED ,  SANGER GREGORY M

IPC: G01N21/35

CPC classification number: G01N21/3504 ,  G01N21/274 ,  G01N21/314 ,  G01N21/39 ,  G01N2201/1215

Abstract: Concentrations of a target analyte in a gas mixture containing one or more background analytes having potentially interfering spectral absorption features can be calculated by compensating for background analyte absorption at a target wavelength used to quantify the target analyte. Absorption can be measured at a reference wavelength chosen to quantify the concentration of the background analyte. Using a background gas adjustment factor or function, the absorption measured at the reference wavelength can be used to calculate absorption due to the background analyte at the target wavelength and thereby compensate for this background absorption to more accurately calculate the target analyte concentration in real or near real time. Additional background analytes can optionally be compensated for by using one or more additional reference wavelengths.

Abstract translation: 含有具有潜在干扰光谱吸收特征的一种或多种背景分析物的气体混合物中的目标分析物的浓度可以通过补偿用于量化目标分析物的目标波长的背景分析物吸收来计算。 可以在选择的参考波长处测量吸光度，以量化背景分析物的浓度。 使用背景气体调节因子或功能，可以使用在参考波长处测量的吸收来计算由于目标波长的背景分析物引起的吸收，从而补偿该背景吸收，以更精确地计算实际或近似的目标分析物浓度 即时的。 可以通过使用一个或多个另外的参考波长来可选地补偿附加的背景分析物。

公开(公告)号：WO2008128114A1

公开(公告)日：2008-10-23

申请号：PCT/US2008/060128

申请日：2008-04-11

Applicant: SPECTRASENSORS, INC. ,  ZHOU, Xin ,  LIU, Xiang ,  FEITISCH, Alfred ,  SANGER, Gregory, M.

Inventor： ZHOU, Xin ,  LIU, Xiang ,  FEITISCH, Alfred ,  SANGER, Gregory, M.

IPC: G01N21/35

CPC classification number: G01N21/3504 ,  G01N2021/3545 ,  G01N2021/399 ,  G01N2201/1215

Abstract: A differential absorption spectrum for a reactive gas in a gas mixture can be generated for sample absorption data by subtracting background absorption data set from the sample absorption data. The background absorption data can be characteristic of absorption characteristics of the background composition in a laser light scan range that includes a target wavelength. The differential absorption spectrum can be converted to a measured concentration of the reactive gas using calibration data. A determination can be made whether the background composition has substantially changed relative to the background absorption data, and new background absorption data can be used if the background composition has substantially changed. Related systems, apparatus, methods, and/or articles are also described..

Abstract translation: 可以通过从样品吸收数据中减去设置的背景吸收数据，为样品吸收数据产生气体混合物中的反应气体的差分吸收光谱。 背景吸收数据可以是包括目标波长的激光扫描范围中背景组合物的吸收特性的特征。 使用校准数据可以将差示吸收光谱转换为测量的反应气体浓度。 可以确定背景组合物是否相对于背景吸收数据基本上改变，并且如果背景组合物已经基本上改变，则可以使用新的背景吸收数据。 还描述了相关系统，装置，方法和/或物品。

公开(公告)号：WO2006047182A2

公开(公告)日：2006-05-04

申请号：PCT/US2005037606

申请日：2005-10-21

Applicant: OPTISCAN BIOMEDICAL CORP ,  HALL W DALE

Inventor： HALL W DALE

IPC: G01N19/00

CPC classification number: G01N21/274 ,  A61B5/14532 ,  A61B5/14535 ,  A61B5/14546 ,  A61B5/1459 ,  A61B5/1495 ,  A61B2560/0223 ,  A61M5/14212 ,  A61M2230/20 ,  G01N21/35 ,  G01N35/00693 ,  G01N35/00712 ,  G01N2201/1215 ,  G01N2201/127

Abstract: A method and apparatus are described that permit an analyte concentration to be estimated from a measurement in the presence of compounds that interfere with the measurement. The method reduces the error in the analyte concentration in the presence of interferents. The method includes the use of a set of measurements obtained for a large population having a range of know analyte and interfering compound concentrations. From a sample measurement, which may or may not be one of the population, likely present interferents are identified, and a calibration vector is calculated.

Abstract translation: 描述了允许在干扰测量的化合物存在下从测量估计分析物浓度的方法和装置。 该方法减少了在存在干扰物的情况下分析物浓度的误差。 该方法包括使用对具有一定范围的已知分析物和干扰化合物浓度的大群体获得的一组测量。 从可能或可能不是其中一个群体的样本测量中，可能存在干扰物被识别，并且计算校准向量。

公开(公告)号：WO1993021515A1

公开(公告)日：1993-10-28

申请号：PCT/DE1993000333

申请日：1993-04-13

Applicant: SIEMENS AKTIENGESELLSCHAFT ,  KIMMIG, Ludwig

Inventor： SIEMENS AKTIENGESELLSCHAFT

IPC: G01N21/35

CPC classification number: G01N33/0037 ,  G01N21/3504 ,  G01N33/0006 ,  G01N2201/1215 ,  Y02A50/245

Abstract: PCT No. PCT/DE93/00333 Sec. 371 Date Oct. 21, 1994 Sec. 102(e) Date Oct. 21, 1994 PCT Filed Apr. 13, 1993 PCT Pub. No. WO93/21515 PCT Pub. Date Oct. 28, 1993A concentration of a detector gas in a measuring gas containing an interfering gas is measured. A zero gas that is free of the detector gas and/or a test gas having a known concentration of the detector gas are supplied to an analyzer such as a non-dispersive infrared (NDIR) gas analyzer. Interfering gas is added to the measuring gas, the zero gas, and in some instances, to the test gas to an extent which allows the interfering gas to have a same concentration in each case.

公开(公告)号：WO1990010851A1

公开(公告)日：1990-09-20

申请号：PCT/FI1990000063

申请日：1990-03-12

Applicant: VALTION TEKNILLINEN TUTKIMUSKESKUS ,  LINNA, Veli ,  RANTANEN, Jarmo

Inventor： VALTION TEKNILLINEN TUTKIMUSKESKUS

IPC: G01J03/02

CPC classification number: G01J3/28 ,  G01N21/3504 ,  G01N2201/1215

Abstract: The object of the invention is a method for the separation of overlapping absorption bands of a spectrum from one another, in which a part of the absorption bands of the gas being measured and of an interfering gas compound occur in the same wavelength area. The content of the gas being measured is obtained by means of the following stages: a pure spectrum of the interfering gas compound at the comparative content is entered into the memory; a pure wavelength area is chosen from the interfering gas compound spectrum, which does not overlap the spectrum of any other substance contained in the gas being investigated; the spectrum (S0) of the gas mixture being investigated is measured and entered in the memory; the wavelength area of the above-mentioned pure area is determined from the measured spectrum, and the relative content value of the interfering gas compound in the gas being investigated is calculated by means of it; the spectrum of the interfering gas compound is calculated by means of the calculated content value, when the interfering spectrum contained in the measured spectrum is obtained; the measured spectrum is divided by the calculated interference spectrum, in which a corrected spectrum (S1) is obtained.

Abstract translation: 本发明的目的是一种用于分离光谱的重叠吸收带的方法，其中被测量的气体的一部分吸收带和干扰气体化合物发生在相同的波长区域中。 被测气体的含量通过以下阶段获得：将比较内容物中的干扰气体化合物的纯谱输入到存储器中; 从干扰气体化合物光谱中选择纯波长区域，其不与所研究气体中包含的任何其它物质的光谱重叠; 测量正在研究的气体混合物的光谱（S0）并将其输入存储器中; 由所测量的光谱确定上述纯面积的波长面积，利用该方法计算被研究气体中的干扰气体化合物的相对含量值; 当获得测量光谱中包含的干涉光谱时，通过计算的内容值计算干扰气体化合物的光谱; 测量的光谱除以计算的干涉光谱，其中获得校正光谱（S1）。

公开(公告)号：EP2252877A2

公开(公告)日：2010-11-24

申请号：EP09713570.1

申请日：2009-02-19

Applicant: Thermo Fisher Scientific Inc.

Inventor： APPEL, Dirk ,  MARZORATTI, Gaston E. ,  NABAR, Shrikrishna H. ,  MOURADIAN, Robert F.

IPC: G01N21/59

CPC classification number: G01N21/3504 ,  G01N21/031 ,  G01N21/274 ,  G01N2021/3133 ,  G01N2021/3174 ,  G01N2201/1215

Abstract: A gas analyzer system includes an optical source, an optical filter assembly, a controller, and an analyzer. The optical source generates an optical signal. The optical filter assembly includes different optical filters in which to filter the optical signal. During operation, the controller selects sequential application of each of the different optical filters in a path of the optical signal to modulate the optical signal using different frequency bands of optical energy. The modulated optical signal passes through an unknown sample. Based on absorption of the optical signal by the sample gas at different frequencies, the optical analyzer detects which types of multiple different gases are present in the sample.

公开(公告)号：EP1620683A4

公开(公告)日：2007-06-13

申请号：EP04712927

申请日：2004-02-19

Applicant: RIC INVESTMENTS INC

Inventor： PIERRY ANTHONY T ,  RICH DAVID R

IPC: G01N33/00 ,  A61B5/083 ,  G01N21/01 ,  G01N21/05 ,  G01N21/35 ,  G01N33/497

CPC classification number: A61B5/087 ,  A61B5/0205 ,  A61B5/083 ,  A61B2562/226 ,  G01N21/05 ,  G01N21/3504 ,  G01N33/497 ,  G01N2021/0118 ,  G01N2021/0193 ,  G01N2201/1215

Abstract: A method and apparatus for interfacing a plurality of gas measurement systems (8, 28, 60), including a mainstream and a sidestream gas measurement system, to a host system (74) via an interface unit (64). The present invention also pertains to a sidestream gas measurement system (80) that outputs signals emulating the signals output by a mainstream gas measurement system or portion thereof, so that the sidestream gas measurement system can seamlessly communicate with a host system configured to communicate only a mainstream gas measurement system or a portion thereof.

公开(公告)号：EP0637376B1

公开(公告)日：1997-03-05

申请号：EP93907798.8

申请日：1993-04-13

Applicant: SIEMENS AKTIENGESELLSCHAFT

Inventor： KIMMIG, Ludwig

IPC: G01N21/35

CPC classification number: G01N33/0037 ,  G01N21/3504 ,  G01N33/0006 ,  G01N2201/1215 ,  Y02A50/245

Abstract: In order to measure the nitric oxide concentration in a measuring gas containing water vapour by means of NDIR gas analysis, the measuring gas, possibly after water vapour has been partially removed, a zero gas by means of which the zero point is determined and a test gas which contains a known concentration of nitric oxide and with which the extent of the measurement effect is determined, are taken via a humidifier so that all three gases have the same water vapour concentration. After the zero point and the measuring effect have been determined, the interfering effect of the water vapour on the measurement can be eliminated by finding the difference and the use of a correcting calculation. The invention is used in the measurement of nitric oxide in exhaust gases.

公开(公告)号：EP0637376A1

公开(公告)日：1995-02-08

申请号：EP93907798.0

申请日：1993-04-13

Applicant: SIEMENS AKTIENGESELLSCHAFT

Inventor： KIMMIG, Ludwig

IPC: G01N21 ,  G01N33

CPC classification number: G01N33/0037 ,  G01N21/3504 ,  G01N33/0006 ,  G01N2201/1215 ,  Y02A50/245

公开(公告)号：EP0463019B1

公开(公告)日：1993-10-27

申请号：EP90904359.8

申请日：1990-03-12

Applicant: VALTION TEKNILLINEN TUTKIMUSKESKUS

Inventor： LINNA, Veli ,  RANTANEN, Jarmo

IPC: G01J3/02

CPC classification number: G01J3/28 ,  G01N21/3504 ,  G01N2201/1215

Abstract: The object of the invention is a method for the separation of overlapping absorption bands of a spectrum from one another, in which a part of the absorption bands of the gas being measured and of an interfering gas compound occur in the same wavelength area. The content of the gas being measured is obtained by means of the following stages: a pure spectrum of the interfering gas compound at the comparative content is entered into the memory; a pure wavelength area is chosen from the interfering gas compound spectrum, which does not overlap the spectrum of any other substance contained in the gas being investigated; the spectrum (S0) of the gas mixture being investigated is measured and entered in the memory; the wavelength area of the above-mentioned pure area is determined from the measured spectrum, and the relative content value of the interfering gas compound in the gas being investigated is calculated by means of it; the spectrum of the interfering gas compound is calculated by means of the calculated content value, when the interfering spectrum contained in the measured spectrum is obtained; the measured spectrum is divided by the calculated interference spectrum, in which a corrected spectrum (S1) is obtained.