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公开(公告)号：US20180095028A1
公开(公告)日：2018-04-05
申请号：US15719250
申请日：2017-09-28
发明人： Laurent Jourdainne
IPC分类号： G01N21/27 , G01N21/3518
CPC分类号： G01N21/274 , G01N21/3504 , G01N21/3518 , G01N21/61 , G01N33/0006 , G01N33/225 , G01N2021/3129 , G01N2021/3166 , G01N2021/3181 , G01N2201/0623 , G01N2201/0627
摘要： Systems and methods are disclosed for detecting the concentrations of constituent gases in a sample. Systems may include a sample chamber configured to contain a volume of a gas, a light source configured to emit infrared light through the volume of the gas, a reference channel, a plurality of active channels, and processing circuitry. The reference channel and the active channels can each include a bandpass optical filter configured to receive light from the light source and selectively pass a portion of the light within a unique range of wavelengths, and a photodetector configured to detect infrared light from the light source that passes through the bandpass optical filter. The processing circuitry can be configured to calculate the concentrations within the sample gas of a plurality of constituent gases based at least in part on the light detected at each of the photodetectors.
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2.发明申请公开(公告)号：US20180059003A1
公开(公告)日：2018-03-01
申请号：US15446878
申请日：2017-03-01
发明人： Laurent Jourdainne
CPC分类号： G01N21/01 , G01J3/427 , G01J2003/423 , G01J2003/4334 , G01K13/00 , G01M3/202 , G01M3/22 , G01N21/031 , G01N21/31 , G01N21/3504 , G01N21/359 , G01N21/39 , G01N33/0037 , G01N33/004 , G01N33/0044 , G01N33/0054 , G01N2021/399 , G01N2201/0221 , G01N2201/0612 , G01N2201/062 , G01N2201/066 , G01N2201/1241
摘要： A system and method to discriminate between a first preselected gas and at least one other preselected gas use of an absorption spectroscopy analyzer that includes a Herriott cell and a temperature sensitive light source. The light source operates at a temperature that emits a beam at a wavelength that corresponds to high absorption by a first preselected gas. When a predetermined level of this gas is detected in a gas sample, the analyzer changes the operating temperature of the light source to emit a beam at a wavelength that corresponds to high absorption by a second preselected gas. The second preselected gas can be a different isotope of the first preselected gas.
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3.发明授权公开(公告)号：US10775297B2
公开(公告)日：2020-09-15
申请号：US15446878
申请日：2017-03-01
发明人： Laurent Jourdainne
IPC分类号： G01N21/01 , G01N21/359 , G01J3/427 , G01N21/03 , G01M3/20 , G01N21/3504 , G01M3/22 , G01N21/39 , G01K13/00 , G01N21/31 , G01N33/00 , G01J3/42 , G01J3/433
摘要： A system and method to discriminate between a first preselected gas and at least one other preselected gas use of an absorption spectroscopy analyzer that includes a Herriott cell and a temperature sensitive light source. The light source operates at a temperature that emits a beam at a wavelength that corresponds to high absorption by a first preselected gas. When a predetermined level of this gas is detected in a gas sample, the analyzer changes the operating temperature of the light source to emit a beam at a wavelength that corresponds to high absorption by a second preselected gas. The second preselected gas can be a different isotope of the first preselected gas.
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