公开(公告)号：WO2010144870A2

公开(公告)日：2010-12-16

申请号：PCT/US2010038417

申请日：2010-06-11

Applicant: SPECTRASENSORS INC ,  LIU XIANG ,  FEITISCH ALFRED ,  ZHOU XIN

Inventor： LIU XIANG ,  FEITISCH ALFRED ,  ZHOU XIN

IPC: G01J3/42 ,  G01N21/25

CPC classification number: G01N21/39 ,  G01J3/433 ,  G01J3/4338 ,  G01J2003/4332 ,  G01J2003/4334 ,  G01N21/031 ,  G01N21/05 ,  G01N21/274 ,  G01N21/3504 ,  G01N2021/354 ,  G01N2021/399

Abstract: Detector data representative of an intensity of light that impinges on a detector after being emitted from a light source and passing through a gas over a path length can be analyzed using a first analysis method to obtain a first calculation of an analyte concentration in the volume of gas and a second analysis method to obtain a second calculation of the analyte concentration. The second calculation can be promoted as the analyte concentration upon determining that the analyte concentration is out of a first target range for the first analysis method.

Abstract translation: 可以使用第一分析方法来分析表示在从光源发射并通过路径长度的气体之后入射到检测器上的光的强度的检测器数据，以获得第一次计算分析物浓度 气体和第二分析方法以获得分析物浓度的第二次计算。 在第一分析方法确定分析物浓度超出第一目标范围时，可以将第二计算提高为分析物浓度。

公开(公告)号：WO2009029876A3

公开(公告)日：2009-04-23

申请号：PCT/US2008074900

申请日：2008-08-29

Applicant: SPECTRASENSORS INC ,  BAUM MARC M ,  MOSS JOHN ,  FEITISCH ALFRED ,  ZHOU XIN ,  LIU XIANG ,  KWAN ALEX

Inventor： BAUM MARC M ,  MOSS JOHN ,  FEITISCH ALFRED ,  ZHOU XIN ,  LIU XIANG ,  KWAN ALEX

IPC: B01D53/52 ,  B01D53/58 ,  B01D53/68 ,  G01N30/02

CPC classification number: B01D53/685 ,  B01D53/42 ,  B01D53/52 ,  B01D53/58 ,  B01D2251/512 ,  B01D2251/602 ,  B01D2251/606 ,  B01D2259/40

Abstract: Scrubber media for reactive gases, that can include but are not necessarily limited to hydrogen chloride (HCl), hydrogen sulfide (H2S), hydrogen fluoride (HF), and ammonia (NH3), can include reactive particles, potentially as small as nano-scale, that can optionally be suspended on macro-scale carrier particles. Reactive gases can be converted to non-volatile compounds by being passed through a bed of such scrubber media. Such scrubber media can be used to remove reactive gases from gas mixtures. Potential applications include differential absorption spectroscopy, air pollutant emission controls, and the like. Methods of preparing scrubber media are also described.

Abstract translation: 可以包括但不一定限于氯化氢（HCl），硫化氢（H 2 S），氟化氢（HF）和氨（NH 3）的反应气体的洗涤器介质可以包括反应性颗粒， 可以选择性地悬挂在宏观尺度的载体颗粒上。 反应性气体可以通过穿过这种洗涤器介质床而转化为非挥发性化合物。 这种洗涤器介质可以用来从气体混合物中除去反应气体。 潜在的应用包括差示吸收光谱，空气污染物排放控制等。 还描述了制备洗涤器介质的方法。

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：WO2008048994A3

公开(公告)日：2008-04-24

申请号：PCT/US2007/081617

申请日：2007-10-17

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

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

IPC: G01N21/35 ,  G01N21/39

Abstract: Moisture can be detected in a refrigerant background such as HFC (Hydroflurocarbon) HFC-134A and HFC-152A and exampled by HFC-23, HFC-32, HFC-143A, HFC-125, HFC-245FA, HFC-227EA, and the like. The system can include a light source operating at any one of several wavelengths within the water absorption bands at wavelengths such as 1.4, 1.9 and 2.7 μm and a detector that measures the transmitted light intensity through the HFC samples. In one variation, the light source is a tunable diode laser and the moisture level is determined by direct absorption and harmonic spectroscopy. Related techniques, apparatus, systems, and articles are also described.

公开(公告)号：WO2008048994A2

公开(公告)日：2008-04-24

申请号：PCT/US2007081617

申请日：2007-10-17

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

Inventor： ZHOU XIN ,  LIU XIANG ,  SANGER GREGORY M

IPC: G01N21/35 ,  G01N21/39

CPC classification number: G01N21/3504 ,  G01N21/031 ,  G01N21/3554 ,  G01N21/39

Abstract: Moisture can be detected in a refrigerant background such as HFC (Hydroflurocarbon) HFC-134A and HFC-152A and exampled by HFC-23, HFC-32, HFC-143A, HFC-125, HFC-245FA, HFC-227EA, and the like. The system can include a light source operating at any one of several wavelengths within the water absorption bands at wavelengths such as 1.4, 1.9 and 2.7 µm and a detector that measures the transmitted light intensity through the HFC samples. In one variation, the light source is a tunable diode laser and the moisture level is determined by direct absorption and harmonic spectroscopy. Related techniques, apparatus, systems, and articles are also described.

Abstract translation: 可以在制冷剂背景下检测出水分，例如HFC（Hydroflurocarbon）HFC-134A和HFC-152A，并用HFC-23，HFC-32，HFC-143A，HFC-125，HFC-245FA，HFC-227EA和 喜欢。 该系统可以包括在诸如1.4,1.9和2.7μm的波长的范围内在吸水带内的几个波长中的任何一个处操作的光源和测量通过HFC样品的透射光强度的检测器。 在一个变化中，光源是可调谐二极管激光器，并且通过直接吸收和谐波光谱测定水分含量。 还描述了相关技术，装置，系统和制品。

公开(公告)号：EP2440893B1

公开(公告)日：2019-09-11

申请号：EP10786945.5

申请日：2010-06-11

Applicant: SpectraSensors, Inc.

Inventor： LIU, Xiang ,  FEITISCH, Alfred ,  ZHOU, Xin

IPC: G01N21/39 ,  G01N21/3504 ,  G01N21/27 ,  G01J3/433

公开(公告)号：EP3066453B1

公开(公告)日：2019-03-20

申请号：EP14802567.9

申请日：2014-11-06

Applicant: SpectraSensors, Inc.

Inventor： SCOTT, Peter ,  FEITISCH, Alfred ,  DORN, Peter ,  CHAIMOWITZ, Adam, S. ,  HUANG, Hsu-hung ,  SCHREMPEL, Mthias ,  KELLER, Lutz

IPC: G01N21/03 ,  G01N21/05 ,  G01N21/27 ,  G01J3/42

公开(公告)号：EP3183546A1

公开(公告)日：2017-06-28

申请号：EP15739741.5

申请日：2015-07-09

Applicant: SpectraSensors, Inc.

Inventor： FEITISCH, Alfred ,  LIU, Xiang ,  HELBLEY, Keith, Benjamin ,  BEYER, Douglas

IPC: G01J3/02 ,  G01J3/42

CPC classification number: G01J3/0205 ,  G01J3/0237 ,  G01J3/027 ,  G01J3/0278 ,  G01J3/0291 ,  G01J3/42 ,  G01J2003/421 ,  G01N21/31 ,  G01N2201/06113 ,  G01N2201/062

Abstract: A spectrometer includes a light source that emits a beam into a sample volume comprising an absorbing medium. Thereafter, at least one detector detects at least a portion of the beam emitted by the light source. It is later determined, based on the detected at least a portion of the beam and by a controller, that a position and/or an angle of the beam should be changed. The beam emitted by the light source is then actively steered by an actuation element under control of the controller. In addition, a concentration of the absorbing media can be quantified or otherwise calculated (using the controller or optionally a different processor that can be local or remote). The actuation element(s) can be coupled to one or more of the light source, a detector or detectors, and a reflector or reflectors intermediate the light source and the detector(s).

Abstract translation: 光谱仪包括将光束发射到包含吸收介质的样本体积中的光源。 之后，至少一个检测器检测由光源发射的光束的至少一部分。 随后基于检测到的至少一部分光束和控制器确定光束的位置和/或角度应该改变。 由光源发射的光束然后在控制器的控制下由致动元件主动地转向。 另外，吸收介质的浓度可以量化或以其他方式计算（使用控制器或可选地可以是本地或远程的不同处理器）。 （一个或多个）致动元件可以联接到光源，检测器或检测器中的一个或多个，以及在光源和检测器中间的一个或多个反射器。

公开(公告)号：EP2932235A1

公开(公告)日：2015-10-21

申请号：EP13821235.2

申请日：2013-12-12

Applicant: SpectraSensors, Inc.

Inventor： KELLER, Lutz ,  FEITISCH, Alfred ,  SCOTT, Peter ,  SCHREMPEL, Mathias ,  ST.JOHN, Nathan

IPC: G01N21/03 ,  G01N21/09

CPC classification number: G01N21/0303 ,  G01J3/42 ,  G01N21/031 ,  G01N21/09 ,  G01N21/3504

Abstract: A spectrometer cell can include a spacer, at least one end cap, and at least one mirror with a reflective surface. The end cap can be positioned proximate to a first contact end of the spacer such that the end cap and spacer at least partially enclose an internal volume of the spectrometer cell. The mirror can be secured in place by a mechanical attachment that may include attachment materials that are chemically inert to at least one reactive gas compound, be thermally stable above at least 120 °C, and be capable of holding an optical axis of the reflective surface in a fixed orientation relative to other components of the spectrometer cell and or a spectrometer device that comprises the spectrometer cell. The mirror can optionally be constructed of a material such as stainless steel, copper, aluminum, alumino-silicate, ceramic, or the like. Related methods, articles of manufacture, systems, etc. are described.