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公开(公告)号：US11079324B2
公开(公告)日：2021-08-03
申请号：US16511429
申请日：2019-07-15
Applicant: SpectraSensors, Inc.
Inventor： Xiang Liu , Alfred Feitisch , Gary Yeh , Chih-Hsuan Chang
Abstract: A method for implementation by a laser spectrometer is provided. The method includes first scanning, by a control unit using a first set of laser spectrometer operating parameters, a first wavelength range by adjusting a wavelength of light of a beam emitted by a laser light source and passing through a sample gas. The first wavelength range encompasses a first spectral feature corresponding to a first constituent. The method also includes at least one second scanning, by the control unit using a second set of laser spectrometer operating parameters, a second wavelength range by adjusting the wavelength of light emitted from the laser light source and passing through the sample gas. The second wavelength range has a second spectral feature corresponding to at least one second constituent. The control unit also determines a first concentration of the first constituent and a second concentration of the at least one second constituent.
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公开(公告)号：US20190277691A1
公开(公告)日：2019-09-12
申请号：US16415171
申请日：2019-05-17
Applicant: SpectraSensors, Inc.
Inventor： Alfred Feitisch , Xiang Liu , Keith Helbley , Douglas Beyer , Marc Winter
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).
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公开(公告)号：US20180156726A1
公开(公告)日：2018-06-07
申请号：US15832690
申请日：2017-12-05
Applicant: SpectraSensors, Inc.
Inventor： Xiang Liu , Alfred Feitisch , Xin Zhou
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.
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公开(公告)号：US20180128678A1
公开(公告)日：2018-05-10
申请号：US15730548
申请日：2017-10-11
Applicant: SpectraSensors, Inc.
Inventor： Alfred Feitisch , Xiang Liu , Keith Benjamin Helbley , Douglas Beyer
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).
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5.发明申请公开(公告)号：US20170038257A1
公开(公告)日：2017-02-09
申请号：US14817119
申请日：2015-08-03
Applicant: SpectraSensors, Inc.
Inventor： Xiang Liu , Gary Yeh , Adam S. Chaimowitz , William Jenko , Alfred Feitisch
IPC: G01J3/28
CPC classification number: G01J3/28 , G01J2003/283 , G01J2003/2866 , G01N21/274 , G01N21/39
Abstract: A frequency registration deviation is quantified for a field spectrum collected during analysis by a spectroscopic analysis system of a sample fluid when the spectroscopic analysis system has deviated from a standard calibration state. The field spectrum is corrected based on the frequency registration deviation using at least one spectral shift technique, and a concentration is calculated for at least one analyte represented by the field spectrum using the corrected field spectrum. Related systems, methods, and articles are described.
Abstract translation: 当光谱分析系统偏离标准校准状态时，通过样品流体的光谱分析系统在分析期间收集的场光谱量化频率对准偏差。 使用至少一个光谱偏移技术，基于频率配准偏差校正场频谱，并且使用校正的场频谱计算由场频谱表示的至少一个分析物的浓度。 描述相关系统，方法和文章。
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Patent Agency Ranking
公开(公告)号：US10746655B2
公开(公告)日：2020-08-18
申请号：US15832690
申请日：2017-12-05
Applicant: SpectraSensors, Inc.
Inventor： Xiang Liu , Alfred Feitisch , Xin Zhou
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.
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公开(公告)号：US10309828B2
公开(公告)日：2019-06-04
申请号：US15730548
申请日：2017-10-11
Applicant: SpectraSensors, Inc.
Inventor： Alfred Feitisch , Xiang Liu , Keith Benjamin Helbley , Douglas Beyer
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).
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8.发明授权公开(公告)号：US10180353B2
公开(公告)日：2019-01-15
申请号：US15640119
申请日：2017-06-30
Applicant: SpectraSensors, Inc.
Inventor： Xiang Liu , Gary Yeh , Adam S. Chaimowitz , William Jenko , Alfred Feitisch
Abstract: A frequency registration deviation is quantified for a field spectrum collected during analysis by a spectroscopic analysis system of a sample fluid when the spectroscopic analysis system has deviated from a standard calibration state. The field spectrum is corrected based on the frequency registration deviation using at least one spectral shift technique, and a concentration is calculated for at least one analyte represented by the field spectrum using the corrected field spectrum. Related systems, methods, and articles are described.
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公开(公告)号：US10024788B2
公开(公告)日：2018-07-17
申请号：US14703616
申请日：2015-05-04
Applicant: SpectraSensors, Inc.
Inventor： Alfred Feitisch , Peter Dorn , James Tedesco , Xiang Liu
IPC: G01J3/28 , G01N21/39 , G01N21/3504 , G01N21/03 , G01J3/02
Abstract: A spectrometer includes a light source configured to emit a beam along a beam path through a sample volume comprising an analyte. Also included is at least one detector positioned to detect at least a portion of the beam emitted by the light source, and at least one reflector positioned along the beam path intermediate the light source and the at least one detector having a surface roughness greater than a predefined level such as 20 Å RMS.
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公开(公告)号：US20170248466A1
公开(公告)日：2017-08-31
申请号：US15376541
申请日：2016-12-12
Applicant: SpectraSensors, Inc.
Inventor： ALFRED FEITISCH , Xiang Liu , Chih-Husan Chang , Hsu-Hung Huang
CPC classification number: G01J3/0291 , G01J3/027 , G01J3/42
Abstract: At least one light source is configured to emit at least one beam into a sample volume of an absorbing medium. In addition, at least one detector is positioned to detect at least a portion of the beam emitted by the at least one light source. Further, at least one beam modification element is positioned between the at least one detector and the at least one light source to selectively change at least one of (i) a power intensity of, or (ii) a shape of the beam emitted by the at least one light source as detected by the at least one detector. A control circuit is coupled to the beam modification element. Related apparatus methods, articles of manufacture, systems, and the like are described.
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