公开(公告)号：US20140340684A1

公开(公告)日：2014-11-20

申请号：US14279369

申请日：2014-05-16

Applicant: Sick AG

Inventor： Julian EDLER ,  Thomas BEYER ,  Rolf DISCH

IPC: G01N21/39

CPC classification number: G01N21/39 ,  G01J3/433 ,  G01J3/4338 ,  G01N21/274 ,  G01N21/3504 ,  G01N21/3554 ,  G01N2021/399 ,  G01N2201/0691 ,  G01N2201/1211 ,  G01N2201/1215 ,  G01N2201/1218

Abstract: A method of determining a concentration of a gas in a sample and/or the composition of a gas using a spectrometer comprises the transmitting of radiation whose wavelength substantially continuously runs through a wavelength range, wherein the continuous running through of the wavelength range is overlaid by a wavelength modulation; the measuring of an absorption signal from the absorption of the radiation by the gas as a function of the wavelength of the radiation; the converting of the absorption signal into a first and a second derivative signal; the deriving of a first measured gas concentration value from the first derivative signal and of a second measured gas concentration value from the second derivative signal; and the determining of the concentration and/or the composition of the gas from at least the first measured gas concentration value, wherein the wavelength modulation is adapted in response to a change of a state variable of the gas such that a ratio between the first measured gas concentration value and the second measured gas concentration value is kept substantially constant.

Abstract translation: 使用光谱仪确定样品中气体浓度和/或气体组成的方法包括传输其波长基本上连续穿过波长范围的辐射，其中波长范围的连续穿过被覆盖在 波长调制; 通过气体吸收辐射的吸收信号作为辐射波长的函数的测量; 将吸收信号转换成第一和第二导数信号; 从所述一阶导数信号导出第一测量气体浓度值和从所述二阶导数信号得到第二测量气体浓度值; 以及从至少第一测量气体浓度值确定气体的浓度和/或组成，其中响应于气体的状态变量的变化而调整波长调制，使得第一测量的气体浓度值 气体浓度值和第二测量气体浓度值保持基本上恒定。

公开(公告)号：US20160363481A1

公开(公告)日：2016-12-15

申请号：US15176275

申请日：2016-06-08

Applicant: SICK AG

Inventor： Julian EDLER ,  Pascal ORTWEIN ,  Michael OVERDICK ,  Markus DAMBACHER ,  Rolf DISCH

IPC: G01J3/02 ,  G01N21/31

CPC classification number: G01J3/0205 ,  G01J3/18 ,  G01J3/42 ,  G01J2003/1857 ,  G01J2003/2813 ,  G01N21/31 ,  G01N2201/068

Abstract: The invention relates to a spectrometer having a plurality of dispersive optical elements arranged such that electromagnetic radiation entering into the spectrometer is incident on the dispersive optical elements to be split spectrally there; the dispersive optical elements differ from one another with respect to their spatial positions and/or their spectral splitting capabilities; the dispersive optical elements are arranged such that the spectra generated by the respective dispersive optical elements by the splitting of the electromagnetic radiation extend in the same direction and are adjacent to one another transversely to this direction of the spectral splitting; and a detector resolving spatially in two dimensions and being located in the optical path of the split electromagnetic radiation for the detection of at least some respective part sections of the spectra. The invention furthermore relates to an analysis apparatus for determining absorption properties of solid, liquid or gaseous substances or substance mixtures.

Abstract translation: 本发明涉及一种具有多个色散光学元件的光谱仪，其布置成使得进入光谱仪的电磁辐射入射到分散光学元件上以在那里被光谱分裂; 色散光学元件相对于它们的空间位置和/或它们的光谱分裂能力彼此不同; 分散光学元件被布置成使得通过分离电磁辐射由相应的色散光学元件产生的光谱在横向于光谱分裂的该方向的同一方向上相互相邻并且彼此相邻; 以及检测器在空间上分解并且位于分离电磁辐射的光路中，以检测光谱的至少一些相应的部分部分。 本发明还涉及用于确定固体，液体或气体物质或物质混合物的吸收性质的分析装置。

公开(公告)号：US20150092194A1

公开(公告)日：2015-04-02

申请号：US14488608

申请日：2014-09-17

Applicant: SICK AG

Inventor： Torsten WALDMANN ,  Rolf DISCH

IPC: G01J3/02 ,  G01N21/35 ,  G01N33/00 ,  G01N21/59

CPC classification number: G01J3/0205 ,  G01J3/0235 ,  G01J3/12 ,  G01J3/26 ,  G01J3/433 ,  G01J2003/1282 ,  G01N21/3504 ,  G01N33/0062

Abstract: A spectrometer (10) for gas analysis is provided, the spectrometer comprising a measurement cell (28) having a gas to be investigated, a light source (12) for the transmission of light (14) into the measurement cell (28) on a light path (16), a filter arrangement (22) having a Fabry-Perot filter (24a-c) in the light path (16), in order to set frequency properties of the light (14) by means of a transmission spectrum of the filter arrangement (22), as well as a detector (36, 38) which measures the absorption of the light (14) by the gas (30) in the measurement cell (28). In this connection the filter arrangement (22) has a plurality of Fabry-Perot filters (24a-c) arranged behind one another in the light path (14) and a control unit (44) for the filter arrangement (22) is provided in order to change the transmission spectrum by setting at least one of the Fabry-Perot filters (24a-c).

Abstract translation: 提供了用于气体分析的光谱仪（10），该光谱仪包括具有待研究气体的测量单元（28），用于将光（14）传输到测量单元（28）中的光源（12） 光路（16），在光路（16）中具有法布里 - 珀罗滤光器（24a-c）的滤光器装置（22），以通过透光光谱（14）的透射光谱来设定光（14）的频率特性 过滤器装置（22）以及测量单元（28）中的气体（30）吸收光（14）的检测器（36,38）。 在这种连接中，过滤器装置（22）具有在光路（14）中彼此相邻布置的多个法布里 - 珀罗过滤器（24a-c），并且用于过滤器装置（22）的控制单元（44）设置在 通过设置至少一个法布里 - 珀罗滤波器（24a-c）来改变传输频谱。

公开(公告)号：US20140245816A1

公开(公告)日：2014-09-04

申请号：US14179050

申请日：2014-02-12

Applicant: SICK AG

Inventor： Rolf DISCH

IPC: G01N21/17

CPC classification number: G01N21/3504 ,  G01N21/1702 ,  G01N2021/1704

Abstract: A gas measurement device for measuring the concentration of a plurality of gas components by means of absorption measurement comprising a light source for infrared radiation (3) or a thermal radiator (4) as a light source (5), an optics (22) for bundling the light of the light source (5), a band pass filter (4) and a photoacoustic measurement cell (12) for measuring a plurality of gas concentrations, wherein a Fabry-Perot filter (6) is provided in front of the photoacoustic measurement cell (12) in addition to the band pass filter (4) for selecting the absorption spectra

Abstract translation: 一种用于通过包括用于红外辐射的光源（3）或作为光源（5）的散热器（4）的吸收测量来测量多个气体成分的浓度的气体测量装置，用于 捆扎光源（5）的光，带通滤光器（4）和用于测量多个气体浓度的光声测量单元（12），其中在光声前面设置法布里 - 珀罗滤光器（6） 除了用于选择吸收光谱的带通滤波器（4）之外的测量单元（12）