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公开(公告)号：US20080265142A1
公开(公告)日：2008-10-30
申请号：US12166222
申请日：2008-07-01
IPC分类号： G01J1/04
CPC分类号： G01N21/39 , G01N2201/12
摘要： A gas species monitoring system includes a laser, a fiber amplifier configured to receive an input signal from the laser and generate an amplified signal, and a variable optical attenuation system configured to receive at least a portion of the amplified signal and generate an attenuated signal for delivery to a measurement point, where the measurement point includes a gaseous fluid. The system further includes a detector configured to receive and process a signal from the measurement point so as to obtain a measured signal that correlates with the presence of a gas species within the gaseous fluid at the measurement point, and a processor in communication with at least the variable optical attenuation system and the detector. The processor controls the variable optical attenuation system based upon the measured signal.
摘要翻译： 气体种类监测系统包括激光器，被配置为从激光器接收输入信号并产生放大信号的光纤放大器，以及可变光衰减系统，被配置为接收放大信号的至少一部分并产生衰减信号 输送到测量点，其中测量点包括气态流体。 该系统还包括检测器，其被配置为接收并处理来自测量点的信号，以便获得与测量点处的气态流体内的气体种类的存在相关的测量信号，以及至少与 可变光衰减系统和检测器。 处理器基于测量信号控制可变光衰减系统。
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公开(公告)号：US07409117B2
公开(公告)日：2008-08-05
申请号：US11045513
申请日：2005-01-31
IPC分类号： G01N21/35
CPC分类号： G01N21/39 , G01N2201/12
摘要： A gas species monitoring system includes a laser, a fiber amplifier configured to receive an input signal from the laser and generate an amplified signal, and a variable optical attenuation system configured to receive at least a portion of the amplified signal and generate an attenuated signal for delivery to a measurement point, where the measurement point includes a gaseous fluid. The system further includes a detector configured to receive and process a signal from the measurement point so as to obtain a measured signal that correlates with the presence of a gas species within the gaseous fluid at the measurement point, and a processor in communication with at least the variable optical attenuation system and the detector. The processor controls the variable optical attenuation system based upon the measured signal.
摘要翻译： 气体种类监测系统包括激光器，被配置为从激光器接收输入信号并产生放大信号的光纤放大器，以及可变光衰减系统，被配置为接收放大信号的至少一部分并产生衰减信号 输送到测量点，其中测量点包括气态流体。 该系统还包括检测器，其被配置为接收并处理来自测量点的信号，以便获得与测量点处的气态流体内的气体种类的存在相关的测量信号，以及至少与 可变光衰减系统和检测器。 处理器基于测量信号控制可变光衰减系统。
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公开(公告)号：US07683357B2
公开(公告)日：2010-03-23
申请号：US12166222
申请日：2008-07-01
CPC分类号： G01N21/39 , G01N2201/12
摘要： A gas species monitoring system includes a laser, a fiber amplifier configured to receive an input signal from the laser and generate an amplified signal, and a variable optical attenuation system configured to receive at least a portion of the amplified signal and generate an attenuated signal for delivery to a measurement point, where the measurement point includes a gaseous fluid. The system further includes a detector configured to receive and process a signal from the measurement point so as to obtain a measured signal that correlates with the presence of a gas species within the gaseous fluid at the measurement point, and a processor in communication with at least the variable optical attenuation system and the detector. The processor controls the variable optical attenuation system based upon the measured signal.
摘要翻译： 气体种类监测系统包括激光器，被配置为从激光器接收输入信号并产生放大信号的光纤放大器，以及可变光衰减系统，被配置为接收放大信号的至少一部分并产生衰减信号 输送到测量点，其中测量点包括气态流体。 该系统还包括检测器，其被配置为接收并处理来自测量点的信号，以便获得与测量点处的气态流体内的气体种类的存在相关的测量信号，以及至少与 可变光衰减系统和检测器。 处理器基于测量信号控制可变光衰减系统。
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公开(公告)号：US07943915B2
公开(公告)日：2011-05-17
申请号：US12249096
申请日：2008-10-10
申请人： Xiaoyong Liu , Yufeng Huang , John McKinley Poole , Gene Smith Berkowitz , Anthony Kowal , Shawn D. Wehe , Hejie Li
发明人： Xiaoyong Liu , Yufeng Huang , John McKinley Poole , Gene Smith Berkowitz , Anthony Kowal , Shawn D. Wehe , Hejie Li
CPC分类号： G01J3/4338
摘要： Several methods of calibrating a wavelength-modulation spectroscopy apparatus configured to measure a concentration of an analyte in a sample gas are disclosed. Each of the methods allows for calibration and recalibration using a relatively safe gas regardless of whether the sample gas for which the concentration of the analyte can be determined is a hazardous gas. In one embodiment of the invention, calibration that is sample-gas specific is accomplished by determining a first slope coefficient and calibration function for the sample gas, after which a scaling factor can be determined based on the first slope coefficient and a second slope coefficient for the same or a different sample gas and used in a subsequent calibration (or recalibration) to scale the calibration function. In other embodiments of the invention, calibration that is not sample-gas specific is accomplished to allow for the determination of the analyte concentration in variable gas compositions and constant gas compositions.
摘要翻译： 公开了一种校准配置成测量样品气体中分析物的浓度的波长调制光谱仪的几种方法。 每种方法允许使用相对安全的气体进行校准和重新校准，而不管可以确定分析物浓度的样品气体是否是有害气体。 在本发明的一个实施例中，通过确定样品气体的第一斜率系数和校准函数来实现样品气体特异性的校准，之后可以基于第一斜率系数和第二斜率系数确定缩放因子， 相同或不同的样品气体，并用于随后的校准（或重新校准）以缩放校准功能。 在本发明的其它实施方案中，完成不是采样气体特异性的校准，以允许确定可变气体组成和恒定气体组成中的分析物浓度。
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公开(公告)号：US20100089117A1
公开(公告)日：2010-04-15
申请号：US12249096
申请日：2008-10-10
申请人： Xiaoyong Liu , Yufeng Huang , John McKinley Poole , Gene Smith Berkowitz , Anthony Kowal , Shawn D. Wehe , Hejie Li
发明人： Xiaoyong Liu , Yufeng Huang , John McKinley Poole , Gene Smith Berkowitz , Anthony Kowal , Shawn D. Wehe , Hejie Li
IPC分类号： G01N21/17
CPC分类号： G01J3/4338
摘要： Several methods of calibrating a wavelength-modulation spectroscopy apparatus configured to measure a concentration of an analyte in a sample gas are disclosed. Each of the methods allows for calibration and recalibration using a relatively safe gas regardless of whether the sample gas for which the concentration of the analyte can be determined is a hazardous gas. In one embodiment of the invention, calibration that is sample-gas specific is accomplished by determining a first slope coefficient and calibration function for the sample gas, after which a scaling factor can be determined based on the first slope coefficient and a second slope coefficient for the same or a different sample gas and used in a subsequent calibration (or recalibration) to scale the calibration function. In other embodiments of the invention, calibration that is not sample-gas specific is accomplished to allow for the determination of the analyte concentration in variable gas compositions and constant gas compositions.
摘要翻译： 公开了一种校准配置成测量样品气体中分析物的浓度的波长调制光谱仪的几种方法。 每种方法允许使用相对安全的气体进行校准和重新校准，而不管可以确定分析物浓度的样品气体是否是有害气体。 在本发明的一个实施例中，通过确定样品气体的第一斜率系数和校准函数来实现样品气体特异性的校准，之后可以基于第一斜率系数和第二斜率系数确定缩放因子， 相同或不同的样品气体，并用于随后的校准（或重新校准）以缩放校准功能。 在本发明的其它实施方案中，完成不是采样气体特异性的校准，以允许确定可变气体组成和恒定气体组成中的分析物浓度。
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6.发明授权公开(公告)号：US08026499B2
公开(公告)日：2011-09-27
申请号：US13083704
申请日：2011-04-11
申请人： Xiaoyong Liu , Yufeng Huang , John McKinley Poole , Gene Smith Berkowitz , Anthony Kowal , Shawn D. Wehe , Hejie Li
发明人： Xiaoyong Liu , Yufeng Huang , John McKinley Poole , Gene Smith Berkowitz , Anthony Kowal , Shawn D. Wehe , Hejie Li
CPC分类号： G01J3/4338
摘要： Several methods of calibrating a wavelength-modulation spectroscopy apparatus configured to measure a concentration of an analyte in a sample gas are disclosed. Each of the methods allows for calibration and recalibration using a relatively safe gas regardless of whether the sample gas for which the concentration of the analyte can be determined is a hazardous gas. In one embodiment of the invention, calibration that is sample-gas specific is accomplished by determining a first slope coefficient and calibration function for the sample gas, after which a scaling factor can be determined based on the first slope coefficient and a second slope coefficient for the same or a different sample gas and used in a subsequent calibration (or recalibration) to scale the calibration function. In other embodiments of the invention, calibration that is not sample-gas specific is accomplished to allow for the determination of the analyte concentration in variable gas compositions and constant gas compositions.
摘要翻译： 公开了一种校准配置成测量样品气体中分析物的浓度的波长调制光谱仪的几种方法。 每种方法允许使用相对安全的气体进行校准和重新校准，而不管可以确定分析物浓度的样品气体是否是有害气体。 在本发明的一个实施例中，通过确定样品气体的第一斜率系数和校准函数来实现样品气体特异性的校准，之后可以基于第一斜率系数和第二斜率系数确定缩放因子， 相同或不同的样品气体，并用于随后的校准（或重新校准）以缩放校准功能。 在本发明的其它实施方案中，完成不是采样气体特异性的校准，以允许确定可变气体组成和恒定气体组成中的分析物浓度。
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7.发明授权Method of calibrating a wavelength-modulation spectroscopy apparatus using a first, second, and third gas to determine temperature values to calculate concentrations of an analyte in a gas 有权使用第一，第二和第三气体校准波长调制光谱设备的方法来确定温度值以计算气体中分析物的浓度公开(公告)号：US08217376B2
公开(公告)日：2012-07-10
申请号：US13083697
申请日：2011-04-11
申请人： Xiaoyong Liu , Yufeng Huang , John McKinley Poole , Gene Smith Berkowitz , Anthony Kowal , Shawn D. Wehe , Hejie Li
发明人： Xiaoyong Liu , Yufeng Huang , John McKinley Poole , Gene Smith Berkowitz , Anthony Kowal , Shawn D. Wehe , Hejie Li
CPC分类号： G01J3/4338
摘要： Several methods of calibrating a wavelength-modulation spectroscopy apparatus configured to measure a concentration of an analyte in a sample gas are disclosed. Each of the methods allows for calibration and recalibration using a relatively safe gas regardless of whether the sample gas for which the concentration of the analyte can be determined is a hazardous gas. In one embodiment of the invention, calibration that is sample-gas specific is accomplished by determining a first slope coefficient and calibration function for the sample gas, after which a scaling factor can be determined based on the first slope coefficient and a second slope coefficient for the same or a different sample gas and used in a subsequent calibration (or recalibration) to scale the calibration function. In other embodiments of the invention, calibration that is not sample-gas specific is accomplished to allow for the determination of the analyte concentration in variable gas compositions and constant gas compositions.
摘要翻译： 公开了一种校准配置成测量样品气体中分析物的浓度的波长调制光谱仪的几种方法。 每种方法允许使用相对安全的气体进行校准和重新校准，而不管可以确定分析物浓度的样品气体是否是有害气体。 在本发明的一个实施例中，通过确定样品气体的第一斜率系数和校准函数来实现样品气体特异性的校准，之后可以基于第一斜率系数和第二斜率系数确定缩放因子， 相同或不同的样品气体，并用于随后的校准（或重新校准）以缩放校准功能。 在本发明的其它实施方案中，完成不是采样气体特异性的校准，以允许确定可变气体组成和恒定气体组成中的分析物浓度。
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公开(公告)号：US07957001B2
公开(公告)日：2011-06-07
申请号：US12249156
申请日：2008-10-10
申请人： Xiaoyong Liu , John McKinley Poole , Yufeng Huang , Daniel M. Stearns , Michael J. Gambuzza , Gene Smith Berkowitz , Anthony Kowal , Hejie Li , Shawn D. Wehe
发明人： Xiaoyong Liu , John McKinley Poole , Yufeng Huang , Daniel M. Stearns , Michael J. Gambuzza , Gene Smith Berkowitz , Anthony Kowal , Hejie Li , Shawn D. Wehe
IPC分类号： G01N21/31
CPC分类号： G01J3/4338 , G01N21/274 , G01N21/39 , G01N2021/399
摘要： In one embodiment of the spectroscopy method, the method comprises the steps of modulating the wavelength of a monochromatic radiation at a modulation amplitude and a modulation frequency; determining a first variable representative of an absorbance of an analyte in a sample; and demodulating by phase-sensitive detection the first variable at a harmonic of the modulation frequency to produce a harmonic spectrum of the analyte. In one embodiment of the spectroscopy apparatus, the apparatus comprises a laser diode integrated with a first photodetector configured to detect an intensity of a backward emission from the laser diode and act as a reference detector; a second photodetector configured to detect an intensity of laser radiation exiting a sample; and electronic circuitry coupled to the laser diode and the photodetectors, configured to acquire and process spectra of the sample. In another embodiment, the spectroscopy apparatus comprises a beam splitter configured to split the laser radiation into a first radiation portion and a second radiation portion and a first photodetector configured to detect the intensity of the first radiation portion.
摘要翻译： 在光谱方法的一个实施例中，该方法包括以调制幅度和调制频率调制单色辐射的波长的步骤; 确定代表样品中分析物的吸光度的第一变量; 并通过相位敏感检测对调制频率的谐波处的第一变量进行解调，以产生分析物的谐波谱。 在光谱设备的一个实施例中，该装置包括与第一光电检测器集成的激光二极管，其被配置为检测来自激光二极管的反向发射的强度并用作参考检测器; 第二光电检测器，其被配置为检测离开样品的激光辐射的强度; 以及耦合到所述激光二极管和所述光电检测器的电子电路，被配置为获取和处理所述样品的光谱。 在另一个实施例中，光谱设备包括分束器，其配置成将激光辐射分裂成第一辐射部分和第二辐射部分，以及配置成检测第一辐射部分的强度的第一光电检测器。
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公开(公告)号：US20100091278A1
公开(公告)日：2010-04-15
申请号：US12249156
申请日：2008-10-10
申请人： Xiaoyong Liu , John McKinley Poole , Yufeng Huang , Daniel M. Stearns , Michael J. Gambuzza , Gene Smith Berkowitz , Anthony Kowal , Hejie Li , Shawn D. Wehe
发明人： Xiaoyong Liu , John McKinley Poole , Yufeng Huang , Daniel M. Stearns , Michael J. Gambuzza , Gene Smith Berkowitz , Anthony Kowal , Hejie Li , Shawn D. Wehe
IPC分类号： G01N21/31
CPC分类号： G01J3/4338 , G01N21/274 , G01N21/39 , G01N2021/399
摘要： In one embodiment of the spectroscopy method, the method comprises the steps of modulating the wavelength of a monochromatic radiation at a modulation amplitude and a modulation frequency; determining a first variable representative of an absorbance of an analyte in a sample; and demodulating by phase-sensitive detection the first variable at a harmonic of the modulation frequency to produce a harmonic spectrum of the analyte. In one embodiment of the spectroscopy apparatus, the apparatus comprises a laser diode integrated with a first photodetector configured to detect an intensity of a backward emission from the laser diode and act as a reference detector; a second photodetector configured to detect an intensity of laser radiation exiting a sample; and electronic circuitry coupled to the laser diode and the photodetectors, configured to acquire and process spectra of the sample. In another embodiment, the spectroscopy apparatus comprises a beam splitter configured to split the laser radiation into a first radiation portion and a second radiation portion and a first photodetector configured to detect the intensity of the first radiation portion.
摘要翻译： 在光谱方法的一个实施例中，该方法包括以调制幅度和调制频率调制单色辐射的波长的步骤; 确定代表样品中分析物的吸光度的第一变量; 并通过相位敏感检测对调制频率的谐波处的第一变量进行解调，以产生分析物的谐波谱。 在光谱设备的一个实施例中，该装置包括与第一光电检测器集成的激光二极管，其被配置为检测来自激光二极管的反向发射的强度并用作参考检测器; 第二光电检测器，被配置为检测离开样品的激光辐射的强度; 以及耦合到所述激光二极管和所述光电检测器的电子电路，被配置为获取和处理所述样品的光谱。 在另一个实施例中，光谱设备包括分束器，其配置成将激光辐射分裂成第一辐射部分和第二辐射部分，以及配置成检测第一辐射部分的强度的第一光电检测器。
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公开(公告)号：US20110181877A1
公开(公告)日：2011-07-28
申请号：US13083704
申请日：2011-04-11
申请人： Xiaoyong Liu , Yufeng Huang , John McKinley Poole , Gene Smith Berkowitz , Anthony Kowal , Shawn D. Wehe , Hejie Li
发明人： Xiaoyong Liu , Yufeng Huang , John McKinley Poole , Gene Smith Berkowitz , Anthony Kowal , Shawn D. Wehe , Hejie Li
IPC分类号： G01J3/28
CPC分类号： G01J3/4338
摘要： Several methods of calibrating a wavelength-modulation spectroscopy apparatus configured to measure a concentration of an analyte in a sample gas are disclosed. Each of the methods allows for calibration and recalibration using a relatively safe gas regardless of whether the sample gas for which the concentration of the analyte can be determined is a hazardous gas. In one embodiment of the invention, calibration that is sample-gas specific is, accomplished by determining a first slope coefficient and calibration function for the sample gas, after which a scaling factor can be determined based on the first slope coefficient and a second slope coefficient for the same or a different sample gas and used in a subsequent calibration (or recalibration) to scale the calibration function. In other embodiments of the invention, calibration that is not sample-gas specific is accomplished to allow for the determination of the analyte concentration in variable gas compositions and constant gas compositions.
摘要翻译： 公开了一种校准配置成测量样品气体中分析物的浓度的波长调制光谱仪的几种方法。 每种方法允许使用相对安全的气体进行校准和重新校准，而不管可以确定分析物浓度的样品气体是否是有害气体。 在本发明的一个实施例中，通过确定样品气体的第一斜率系数和校准函数来实现样品气体特异性的校准，之后可以基于第一斜率系数和第二斜率系数确定比例因子 用于相同或不同的样品气体，并用于随后的校准（或重新校准）以缩放校准功能。 在本发明的其它实施方案中，完成不是采样气体特异性的校准，以允许确定可变气体组成和恒定气体组成中的分析物浓度。
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