Correction of collision broadening in non-dispersive absorption
measurement of gases
    1.
    发明授权
    Correction of collision broadening in non-dispersive absorption measurement of gases 失效
    气体非分散吸收测量中碰撞加宽的校正

    公开(公告)号:US5900635A

    公开(公告)日:1999-05-04

    申请号:US544663

    申请日:1995-10-18

    IPC分类号: G01N21/35 G01N21/61

    CPC分类号: G01N21/3504

    摘要: A method of non-dispersive analysis of gas mixtures for determining the concentration of some gas component therein. A radiation source is arranged which emits, through the gas mixture being analyzed, radiation within a wavelength range within which the absorption spectrum band used in the determination of the concentration of the said gas component is located; an optical transmission band filter the transmission band of which coincides with the said spectrum band is provided in the path of the radiation traversing the gas mixture being analyzed; a detector is used for detecting the radiation which has traversed the gas mixture being analyzed and the optical transmission band filter, whereby a first signal is obtained from the detector; a different second signal is generated in the detector by means of an additional gas or an additional gas mixture interposed between the radiation source and the detector; and the result of the concentration measurement is formed computationally by using the different measurement signals. Furthermore, in the method the transmission bands of the said transmission band filters are arranged within the same measuring range; as the additional gas there is used a compensation gas or a compensation gas mixture in which the compensation gas is the gas component the concentration of which is being determined or a corresponding other gas or a compensation filter. The absorption properties of the compensation filter are selected to be such, or the amount of the compensation gas is selected to be such, that the broadening of the absorption lines in the absorption spectrum band used will change the said different second signal.

    摘要翻译: 气体混合物的非分散分析方法,用于确定其中某些气体组分的浓度。 布置辐射源,其通过被分析的气体混合物发射在用于确定所述气体组分的浓度的所述吸收光谱带所在的波长范围内的辐射; 在穿过正在分析的气体混合物的辐射的路径中提供其中与所述光谱带一致的透射带的光传输带滤波器; 检测器用于检测已经穿过正被分析的气体混合物的辐射和光学传输带式滤波器,由此从检测器获得第一信号; 在检测器中通过插入在辐射源和检测器之间的附加气体或附加气体混合物产生不同的第二信号; 并且通过使用不同的测量信号计算地形成浓度测量的结果。 此外,在该方法中,所述传输带滤波器的传输频带布置在相同的测量范围内; 作为附加气体,使用补偿气体或补偿气体混合物,其中补偿气体是其浓度被确定的气体成分或相应的其它气体或补偿过滤器。 选择补偿滤波器的吸收特性,或者选择补偿气体的量,使得所使用的吸收谱带中的吸收线的变宽将改变所述不同的第二信号。

    Double radiation source assembly and transducer
    2.
    发明授权
    Double radiation source assembly and transducer 失效
    双辐射源组件和传感器

    公开(公告)号:US5668376A

    公开(公告)日:1997-09-16

    申请号:US605810

    申请日:1996-02-23

    IPC分类号: G01J3/10 G01N21/35 G01N21/61

    CPC分类号: G01N21/3504 G01J3/108

    摘要: A radiation source assembly for optical transducers used for the analysis of material components of media, whereby the radiation source assembly comprises: two thermal radiation sources (1, 2), of which the first radiation source (1) is located, in relation to the second radiation source, in such a position that it emits through the second radiation source (2); a band-stop filter (10) located between the first and the second radiation sources, so that the radiation (6) emitted by the first radiation source passes through it. Both thermal radiation sources (1, 2) comprise a substrate (3, 11) made of silicon, of a silicon mixture or of a silicon compound, and a recess (53) made in the substrate, and micro-filaments (4, 5), which are fastened at their ends to the outer surface (51, 52) of the substrate, their radiation (6, 8) emitting regions being at a distance (H) from the bottom surface (54) of the recess. The stop band of the band-stop filter (10) substantially corresponds to the absorption distribution of the material component of the medium to be analyzed with the transducer.

    摘要翻译: 一种用于光学传感器的辐射源组件,用于分析介质的材料部件,由此所述辐射源组件包括:相对于所述第一辐射源(1)所位于的两个热辐射源(1,2),所述第一辐射源 在第二辐射源发射通过第二辐射源(2)的位置; 位于第一和第二辐射源之间的带阻滤波器(10),使得由第一辐射源发射的辐射(6)通过它。 两个热辐射源(1,2)包括由硅制成的硅混合物或硅化合物的衬底(3,11)和在衬底中制成的凹部(53),微丝(4,5) ),它们的端部紧固在衬底的外表面(51,52)上,它们的辐射(6,8)发射区域距离凹部的底表面(54)有一个距离(H)。 带阻滤波器(10)的阻带基本上对应于用换能器分析的介质的材料成分的吸收分布。

    Gas analyzer for measuring at least two components of a gas
    3.
    发明授权
    Gas analyzer for measuring at least two components of a gas 有权
    用于测量气体的至少两种组分的气体分析仪

    公开(公告)号:US08642966B2

    公开(公告)日:2014-02-04

    申请号:US13280852

    申请日:2011-10-25

    IPC分类号: G01J5/02

    摘要: A gas analyzer for measuring at least two components of a gas is disclosed herein. The gas analyzer comprising an emitter configured to emit infrared radiation through the gas, a filter assembly configured to permit a transmission of predetermined wavelengths emitted by the emitter, and a detector configured to receive wavelengths emitted by the emitter and penetrated through the filter assembly. The filter assembly comprises at least two tunable narrowband interference filters in series, each of the filters comprising two dielectric mirrors and an air space between the two dielectric mirrors to tune one of the filters to different transmission band than another of the filters.

    摘要翻译: 本文公开了用于测量气体的至少两种组分的气体分析器。 气体分析器包括被配置为通过气体发射红外辐射的发射器,被配置为允许发射由发射器发射的预定波长的传输的滤波器组件和被配置为接收由发射器发射并穿透过滤器组件的波长的检测器。 滤波器组件包括串联的至少两个可调窄带干扰滤波器,每个滤波器包括两个电介质反射镜和两个电介质镜之间的空气空间,以将滤波器之一调谐到与另一个滤波器不同的传输频带。

    FLUID CONNECTION FOR REDUCING A FLUID VOLUME IN THE CONNECTION
    5.
    发明申请
    FLUID CONNECTION FOR REDUCING A FLUID VOLUME IN THE CONNECTION 审中-公开
    流体连接用于减少连接中的流体体积

    公开(公告)号:US20120013121A1

    公开(公告)日:2012-01-19

    申请号:US13178038

    申请日:2011-07-07

    IPC分类号: F16L21/00 F16L25/00

    摘要: A fluid connection for reducing a volume in this connection is disclosed herein. The connection includes a first connector having a first body encircling a first bore, the first body having a first sealing surface (and a second connector having a second body encircling a second bore, the second body having a second sealing surface to form a tight connection with the first sealing surface. The connection also includes a volume between the first and second connector and a protrusion in one of the first and second body. The connection further includes a cavity in a remaining one of the first and second body and which cavity is receiving the protrusion separating the volume into a first volume and a second volume, which is at a distance from the first volume.

    摘要翻译: 这里公开了用于减小该连接体积的流体连接。 连接件包括具有环绕第一孔的第一主体的第一连接器,第一主体具有第一密封表面(以及第二连接器,其具有包围第二孔的第二主体,第二主体具有第二密封表面以形成紧密连接 该连接还包括在第一和第二连接器之间的体积和在第一和第二主体之一中的突起之间的连接,该连接还包括在第一和第二主体中的剩余部分中的空腔, 接收将体积分隔成第一体积的凸起和与第一体积相距一定距离的第二体积。

    SIMPLIFIED BEAM SPLITTER FOR IR GAS SENSOR
    6.
    发明申请
    SIMPLIFIED BEAM SPLITTER FOR IR GAS SENSOR 有权
    用于红外气体传感器的简化光束分离器

    公开(公告)号:US20100078563A1

    公开(公告)日:2010-04-01

    申请号:US12565099

    申请日:2009-09-23

    IPC分类号: G01J5/02

    摘要: A non-dispersive single beam detection assembly in an infrared gas analyzer. The detection assembly comprises radiation source(s) providing infrared radiation, a measuring chamber, and a physical beam splitter for dividing said radiation beam into a reflected beam portion and a transmitted beam portion, or for combining a reflected beam portion and a transmitted beam portion into said radiation beam. A measuring detector receives one beam portions, and a reference detector receives another beam portion. Alternatively a measuring/reference detector receives both beam portions. Said transmitted beam portion has a first spectral intensity peak at shorter wavelengths with a first peak wavelength, and said reflected beam portion has a second spectral intensity peak at longer wavelengths with a second peak wavelength. There is a wavelength gap between said second peak wavelength and said first peak wavelength, which gap corresponds a wavelength shift of an optical interference filter with said second peak wavelength as tilted from its perpendicular position to an angled position. Said wavelength gap is at maximum 10% of the second peak wavelength, and at minimum 0.5% of the second peak wavelength.

    摘要翻译: 红外气体分析仪中的非分散单光束检测组件。 检测组件包括提供红外辐射的辐射源,测量室和物理分束器,用于将所述辐射束分成反射光束部分和透射光束部分,或用于组合反射光束部分和透射光束部分 进入所述辐射束。 测量检测器接收一个光束部分,并且参考检测器接收另一光束部分。 或者,测量/参考检测器接收两个光束部分。 所述透射光束部分具有在具有第一峰值波长的较短波长处的第一光谱强度峰值,并且所述反射光束部分在具有第二峰值波长的较长波长处具有第二光谱强度峰值。 在所述第二峰值波长和所述第一峰值波长之间存在波长间隙,该间隙对应于具有从其垂直位置倾斜到成角度位置的所述第二峰值波长的光学干涉滤光器的波长位移。 所述波长间隙为第二峰值波长的最大值10%,并且为第二峰值波长的最小值的0.5%。

    Additional feature for a measuring sensor used in the spectroscopic
analysis of mediums
    7.
    发明授权
    Additional feature for a measuring sensor used in the spectroscopic analysis of mediums 失效
    用于介质光谱分析的测量传感器的附加功能

    公开(公告)号:US6046814A

    公开(公告)日:2000-04-04

    申请号:US919745

    申请日:1997-08-28

    IPC分类号: G01N21/25 G01J5/08 G01N21/84

    CPC分类号: G01N21/255

    摘要: The invention relates to an additional feature for use in a measuring sensor which is used for analyzing mediums spectroscopically. The measuring sensor comprises: a radiation source (1), emitting radiation which travels through a first window (3a) of a sample chamber (2), an absorption length (L1) and further a second window (3b) of the sample chamber (2), the sample chamber being provided, if necessary, with flow connections for a gas mixture; at least done detector (9), which is optically directed towards the second window; at least one optical filter (8), which is permeable to a certain wavelength band, or a radiation dispersion device between the radiation source and the detector. Between the first sample chamber window and the radiation source, the feature comprises a length (L2) and/or, between the second window and the detector, a length (L3), totalling at least about 20% of the absorption length. The length (L2) between an inner surface (13a) of the first sample chamber window and the radiation source and/or the length (L3) between an inner surface (13b) of the second window and the detector or, respectively, detectors are constituted over substantially all other sections of the radiation path, except those in alignment with possible accessories, by a solid material (7) transmissive to the applied radiation wavelengths. This material is preferably homogeneous at least in the direction transverse to a main radiating direction (R).

    摘要翻译: 本发明涉及一种用于测量传感器的附加特征,用于光谱分析介质。 测量传感器包括:辐射源(1),其发射穿过样品室(2)的第一窗口(3a)的辐射,吸收长度(L1)和另外的样品室的第二窗口(3b) 如图2所示,如果需要,样品室具有气体混合物的流动连接; 至少完成的检测器(9),其被光学地指向第二窗口; 至少一个对某一波长带可透过的滤光器(8),或辐射源与检测器之间的辐射分散装置。 在第一样品室窗口和辐射源之间,特征包括长度(L2)和/或在第二窗口和检测器之间,长度(L3),总共至少约20%的吸收长度。 第一样品室窗口的内表面(13a)和辐射源之间的长度(L2)和/或第二窗口的内表面(13b)与检测器之间的长度(L3)分别为检测器, 通过对所施加的辐射波长透射的固体材料(7),除了与可能的附件对准的辐射路径的基本上所有其他部分之外构成。 该材料至少在横向于主辐射方向(R)的方向上是均匀的。

    LIQUID SEPARATION APPARATUS FOR REMOVING A LIQUID FROM A RESPIRATORY GAS AND RESPIRATORY GAS ANALYZING SYSTEM
    8.
    发明申请
    LIQUID SEPARATION APPARATUS FOR REMOVING A LIQUID FROM A RESPIRATORY GAS AND RESPIRATORY GAS ANALYZING SYSTEM 审中-公开
    用于从呼吸气体和呼吸气体分析系统中去除液体的液体分离装置

    公开(公告)号:US20120136269A1

    公开(公告)日:2012-05-31

    申请号:US13280970

    申请日:2011-10-25

    IPC分类号: A61B5/08 G01N33/497 B01D46/00

    摘要: A liquid separation apparatus for removing a liquid from a respiratory gas is provided. The liquid separation apparatus comprises a housing that comprises an input, wherein a sample withdrawn from the respiratory gas is delivered through the input; a first output wherein at least part of the sample of the respiratory gas is discharged through the first output; and a first filter configured to remove the liquid from the sample of respiratory gas flowing through the input and the first output of the housing. The first filter comprises a hydrophobic property and an oleophobic property to remove the liquid when a surface tension of the liquid is lower than a surface tension of bodily fluids.

    摘要翻译: 提供了用于从呼吸气体中除去液体的液体分离装置。 液体分离装置包括:壳体,其包括输入,其中从呼吸气体排出的样品通过输入物输送; 第一输出,其中呼吸气体的至少一部分样品通过第一输出排出; 以及第一过滤器,其被配置为从流过所述输入和所述壳体的所述第一输出的呼吸气体的样品中去除所述液体。 当液体的表面张力低于体液的表面张力时,第一过滤器包含疏水性和疏油性以去除液体。

    Correction of a mixture gas effect in measuring based on radiation
absorption
    9.
    发明授权
    Correction of a mixture gas effect in measuring based on radiation absorption 失效
    基于辐射吸收的测量中混合气体效应的校正

    公开(公告)号:US6001064A

    公开(公告)日:1999-12-14

    申请号:US929957

    申请日:1997-09-15

    IPC分类号: G01N11/00 G01N21/35 A61B5/00

    摘要: A measuring device for determining the concentration of such gas components from a gas mixture, which includes collision dilation of the absorption lines constituting the absorption spectral bands for measuring objects. The device comprises a non-dispersive concentration measuring sensor (20), which includes: a measuring chamber (6) containing a gas mixture to be analyzed; a radiation source (17) for emitting over a wavelength range which includes an absorption spectral band used in concentration determination; a detector (18) receiving radiation that has passed through the measuring chamber and for producing a first signal (7) therefrom; as well as an optical bandpass filter (16) positioned between the detector and the radiation source. The measuring device further comprises a second measuring sensor (4) for identifying the viscosity or some other viscosity-related feature of a gas mixture to be analyzed and for producing a second signal (9). Both signals (7, 9) are delivered to a calculating unit (8), which uses at least a second signal for performing the corrections required for the first signal. In addition, the device is provided with a display means (10).

    摘要翻译: 一种用于确定来自气体混合物的这种气体组分的浓度的测量装置,其包括构成用于测量物体的吸收光谱带的吸收线的碰撞扩张。 该装置包括非分散浓度测量传感器(20),其包括:包含要分析的气体混合物的测量室(6); 用于在包括用于浓度测定的吸收光谱带的波长范围内发射的辐射源(17); 接收已经通过测量室的辐射并从其产生第一信号(7)的检测器(18); 以及位于检测器和辐射源之间的光学带通滤波器(16)。 测量装置还包括用于识别要分析的气体混合物的粘度或某些其它与粘度有关的特征并用于产生第二信号的第二测量传感器(4)。 两个信号(7,9)被传送到计算单元(8),该计算单元使用至少第二信号来执行第一信号所需的校正。 此外,该装置设置有显示装置(10)。

    Method and apparatus for determining the alcohol concentration in a gas
mixture
    10.
    发明授权
    Method and apparatus for determining the alcohol concentration in a gas mixture 失效
    用于测定气体混合物中的醇浓度的方法和装置

    公开(公告)号:US5793043A

    公开(公告)日:1998-08-11

    申请号:US774871

    申请日:1996-12-19

    摘要: An apparatus for determining the alcohol concentration in a gas mixture, which may contain a number of such interference components that have substantial absorption within the range of the alcohol absorption line to be presently determined, by means of a method based on the absorption of infrared radiation. The apparatus comprises: a radiation source (1); a chamber (4) for receiving a gas mixture (6) to be measured, said chamber being provided with windows (7a, 7b) whereby a radiation (2) passes through the gas mixture; a detector (13) which receives the radiation having passed through the gas mixture and transforms it to an electric state for further processing; between the radiation source and the detector an optical interference filter (10), which has a narrow radiation transmission band and which is pivotable (P) relative to the main traveling direction of radiation for changing the wavelength range of the filter's transmission band. The transmission band of the optical interference filter (10) has a mean wavelength which is within the range of 7.5 .mu.m-12.5 .mu.m and this transmission band of the interference filter (10) has a half-width which is more than 1.5% of said mean wavelength.

    摘要翻译: 一种用于确定气体混合物中的醇浓度的装置,其可以包含许多这样的干扰成分,其在目前确定的醇吸收线的范围内具有显着的吸收,借助于基于红外辐射的吸收的方法 。 该装置包括:辐射源(1); 用于接收被测量的气体混合物(6)的室(4),所述室设有窗口(7a,7b),由此辐射(2)通过气体混合物; 检测器(13),其接收已经通过气体混合物的辐射,并将其转换成电状态用于进一步处理; 辐射源和检测器之间的光学干涉滤光器(10),其具有窄的辐射透射带,并且相对于辐射的主行进方向可枢转(P),以改变滤光器的透射带的波长范围。 光干涉滤光器(10)的透射带的平均波长在7.5μm-12.5μm的范围内,干涉滤光片(10)的透射带的半宽度大于1.5% 的所述平均波长。