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公开(公告)号：US5894128A
公开(公告)日：1999-04-13
申请号：US917474
申请日：1997-08-26
申请人： Akioki Nakamori
发明人： Akioki Nakamori
IPC分类号： G01N21/03 , G01N21/3518 , G01N21/61
CPC分类号： G01N21/3518
摘要： An infrared type gas analyzer is formed of a measuring cell for receiving a gas to be measured; an infrared light source for irradiating the gas in the measuring cell; a correlation filter disposed adjacent to the measuring cell; and a sensor for detecting infrared light ejected from the infrared light source and passing through the correlation filter and the measuring cell to analyze the gas in the measuring cell. A correction filter is disposed on a portion of the correlation filter for correction or calibration of the gas analyzer. Thus, the infrared type gas analyzer has a simple structure and can perform a simplified correction without complicated operation.
摘要翻译： 红外型气体分析仪由用于接收待测气体的测量池形成; 用于照射测量池中的气体的红外光源; 设置在与测量单元相邻的相关滤波器; 以及传感器，用于检测从红外光源射出并通过相关滤光器和测量单元的红外光，以分析测量单元中的气体。 校正滤波器设置在相关滤波器的一部分上，用于校正或校准气体分析器。 因此，红外线型气体分析仪具有简单的结构，可以进行简单的校正而不需要复杂的操作。
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32.发明授权
公开(公告)号：US5696379A
公开(公告)日：1997-12-09
申请号：US660177
申请日：1996-06-03
申请人： Burkhard Stock
发明人： Burkhard Stock
IPC分类号： G01N21/3518 , G01N21/61
CPC分类号： G01N21/3518
摘要： A measuring apparatus for measuring the concentration of a gas by infrared absorption includes a first radiation source 11 having a first modulation frequency, an arcuate waveguide 13 for receiving the gas to be measured therein, and two radiation detectors (15, 16). The measuring apparatus of the invention is a compact gas measuring apparatus having a simple configuration. The temperature dependent and deterioration dependent changes of the two radiation detectors (15, 16) are compensated. A second radiation source 12 having a second modulation frequency is mounted between the first radiation source 11 and the radiation detectors (15, 16).
摘要翻译： 用于通过红外吸收测量气体浓度的测量装置包括具有第一调制频率的第一辐射源11，用于接收待测气体的弧形波导13和两个辐射检测器（15,16）。 本发明的测量装置是具有简单结构的紧凑型气体测量装置。 补偿两个辐射检测器（15,16）的温度依赖性和劣化相关变化。 具有第二调制频率的第二辐射源12安装在第一辐射源11和辐射探测器（15,16）之间。
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公开(公告)号：US5689114A
公开(公告)日：1997-11-18
申请号：US632881
申请日：1996-04-16
IPC分类号： G01N21/35 , G01N21/3518 , G01N21/61
CPC分类号： G01N21/3518
摘要： A gas analyzing apparatus comprises a light source (34) emitting an infrared luminous flux; a sample cell (38) which is arranged such that a sample gas is introduced therein and the infrared luminous flux emitted from the light source (34) is transmitted therethrough; and detection means (10a, 10b) which contain absorbers and are arranged such that the infrared luminous flux transmitted through the sample cell (38) passes through the absorbers and an increase in pressure according to the temperature within each of their absorber containers raised upon absorption of the infrared luminous flux by each absorber is optically detected so as to measure, based on the increases in pressure, concentrations of ingredients to be measured in the sample gas, wherein, as the absorbers contained in the detection means (10a, 10b), gases having ingredients identical to the ingredients to be measured are used, respectively.
摘要翻译： 气体分析装置包括发射红外光束的光源（34） 将样品气体引入其中并从光源（34）发射的红外光束透射的样品池（38）; 以及检测装置（10a，10b），其包含吸收体，并且被布置成使得透过所述样品池（38）的红外光通量通过所述吸收体，并且根据吸收体中升高的每个吸收容器内的温度增加压力 对各吸收体的红外光通量进行光学检测，以便根据压力的增加来测定样品气体中要测量的成分的浓度，其中，作为检测装置（10a，10b）中包含的吸收体， 分别使用具有与待测量成分相同成分的气体。
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34.发明授权公开(公告)号：US11506599B2
公开(公告)日：2022-11-22
申请号：US16829364
申请日：2020-03-25
发明人： Thomas Grille , Cristina Consani , Peter Irsigler , Bernhard Jakoby , Thomas Krotscheck Ostermann , Gerald Puehringer , Christian Ranacher , Andreas Tortschanoff
IPC分类号： H01L31/0232 , H01L31/0368 , H01L31/16 , H01L31/18 , G01N21/3518 , H01L31/0216
摘要： A fluid sensor includes a substrate having a top main surface region, wherein the top main surface region of the substrate forms a common system plane of the fluid sensor, a thermal radiation emitter on the top main surface region of the substrate, an optical filter structure on the top main surface region of the substrate, a waveguide on the main top surface region of the substrate, and a thermal radiation detector on the top main surface region of the substrate, wherein the thermal radiation detector provides a detector output signal based on a radiation strength of the filtered thermal radiation received from the waveguide.
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公开(公告)号：US20220260462A1
公开(公告)日：2022-08-18
申请号：US17670204
申请日：2022-02-11
IPC分类号： G01N1/22 , G01N21/3518
摘要： Disclosed are methods and systems for implementing an automated air quality analysis system. The system includes: a sealed enclosure, a filter sample analysis system disposed within the sealed enclosure, and a controller operably coupled with the filter sample analysis system. The filter sample analysis system includes: an automated filter management system with filter samples and an articulating robotic arm which selects the filter sample for analysis, a filter weighing apparatus for weighting of the filter sample, and a primary chemical analysis apparatus for performing electromagnetic energy spectroscopy measurement on the filter sample. The controller operates the automated filter management system to transport the filter sample to the filter weighing apparatus and the primary chemical analysis apparatus, obtains data from the filter sample analysis system, and determines the type and amount of accumulated mass in the sample based on the weight and the spectroscopy measurement result.
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公开(公告)号：US10895530B2
公开(公告)日：2021-01-19
申请号：US16197056
申请日：2018-11-20
发明人： Jaeyong Ryu
IPC分类号： G01N21/53 , G01N21/94 , G01N33/00 , G01N21/3504 , G01N21/3518
摘要： The present invention provides a sensor combining a dust sensor and a gas sensor, comprising a light emitting unit for emitting light, a first light receiving unit for receiving scattered light which is emitted by the light emitting unit and scattered by dust to detect dust concentration, a mirror for changing a path of the emitted light which the light emitting unit emits, and a second light receiving unit for receiving the emitted light the path of which is changed by the mirror to detect gas concentration. An inflow section for introducing air into a detection space inside the sensor is formed in a Y-shaped tube in which a first inlet and a second inlet meet. The inflow section comprises a switch which selects a path through which air flows into the detection space out of the first inlet and the second inlet.
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公开(公告)号：US20200292447A1
公开(公告)日：2020-09-17
申请号：US16819853
申请日：2020-03-16
IPC分类号： G01N21/3518 , G01N33/00
摘要： A gas analysis system with an FTIR spectrometer preferably utilizes a long path gas cell, a narrow band detector, and an optical filter that narrows the detection region to measure hydrogen sulfide.
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公开(公告)号：US20190137391A1
公开(公告)日：2019-05-09
申请号：US16235384
申请日：2018-12-28
申请人： Itron, Inc.
发明人： Mark A. Stambaugh
IPC分类号： G01N21/3518 , G01N33/00
CPC分类号： G01N21/3518 , G01N21/0303 , G01N21/3504 , G01N33/0047 , G01N2201/062 , G01N2201/0662 , G01N2201/0686
摘要： Systems and methods for verifying that light absorption is caused by a targeted gaseous chemical compound. A first transmittance of light, either generated at, or filtered to, a first wavelength range and a second transmittance of light, either generated at, or filtered to, a second wavelength range are measured by first and second photon detectors. A ratio of the first and second measured transmittance is determined and that ratio is compared to a transmittance ratio associated with a targeted gaseous chemical compound to verify that the light absorption is caused by the targeted gaseous chemical compound.
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公开(公告)号：US20190137390A1
公开(公告)日：2019-05-09
申请号：US16183045
申请日：2018-11-07
发明人： Allen M. Waxman , Jason M. Bylsma , Allan Vaitses
IPC分类号： G01N21/3518 , G01M3/38 , G01F1/76
摘要： Apparatus and methods for rapidly detecting, localizing, imaging, and quantifying leaks of natural gas and other hydrocarbon and greenhouse gases. Scanning sensors, scan patterns, and data processing algorithms enable monitoring a site to rapidly detect, localize, image, and quantify amounts and rates of hydrocarbon leaks. Multispectral short-wave infrared detectors sense non-thermal infrared radiation from natural solar or artificial illumination sources by differential absorption spectroscopy. A multispectral sensor is scanned to envelop an area of interest, detect the presence and location of a leak, and raster scan the area around the leak to create an image of the leak. The resulting absorption image related to differential spectral optical depth is color mapped to render the degree of gas absorption across the scene. Analysis of this optical depth image, with factors including known inline pressures and/or surface wind speed measurements, enable estimation of the leak rate, i.e., emission mass flux of gas.
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公开(公告)号：US10190976B2
公开(公告)日：2019-01-29
申请号：US15923794
申请日：2018-03-16
发明人： Allen M. Waxman , Jason M. Bylsma , Allan Vaitses
IPC分类号： G01N21/35 , G01N21/3518 , G01F1/76 , G01N21/3504 , G01M3/38
摘要： Apparatus and methods for rapidly detecting, localizing, imaging, and quantifying leaks of natural gas and other hydrocarbon and greenhouse gases. Scanning sensors, scan patterns, and data processing algorithms enable monitoring a site to rapidly detect, localize, image, and quantify amounts and rates of hydrocarbon leaks. Multispectral short-wave infrared detectors sense non-thermal infrared radiation from natural solar or artificial illumination sources by differential absorption spectroscopy. A multispectral sensor is scanned to envelop an area of interest, detect the presence and location of a leak, and raster scan the area around the leak to create an image of the leak. The resulting absorption image related to differential spectral optical depth is color mapped to render the degree of gas absorption across the scene. Analysis of this optical depth image, with factors including known inline pressures and/or surface wind speed measurements, enable estimation of the leak rate, i.e., emission mass flux of gas.
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