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公开(公告)号：US10883875B2
公开(公告)日：2021-01-05
申请号：US15555762
申请日：2016-03-03
发明人： Terry Marta , Rodney Royston Watts , Antony Leighton Phillips , Bernard Fritz , James Allen Cox
IPC分类号： G01J3/02 , G01N21/3504 , G01J3/42 , G02B5/20
摘要： Embodiments relate generally to systems and methods for filtering unwanted wavelengths from an IR detector. In some embodiments, it may be desired to remove or reduce the wavelengths absorbed by water, to reduce the effects of water on the detection of the target gas. In some embodiments, a filter glass may be used in the IR detector, wherein the filter glass comprises one or more materials that contain hydroxyls in their molecular structure, and wherein the spectral absorption properties of the filter glass are operable to at least reduce wavelengths of light absorbed by water from the optical, thereby reducing the IR detector's cross sensitivity to water.
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公开(公告)号：US10458900B2
公开(公告)日：2019-10-29
申请号：US15759165
申请日：2016-09-07
发明人： Terry Marta , James Allen Cox , Bernard Fritz , Antony Phillips , Rodney Watts
IPC分类号： G01N21/17 , G01N21/3504 , G01N21/37 , G01N29/24 , G01N29/44
摘要： A non-dispersive photoacoustic gas detector includes an infrared light source, a first closed chamber, a first acoustic sensor in fluid communication with the first closed chamber, a second closed chamber, and a second acoustic sensor in fluid communication with the second closed chamber. The first closed chamber comprises a plurality of windows that are substantially transparent to infrared light from the infrared light source. The second closed chamber comprises at least one window that is substantially transparent to infrared light from the infrared light source, and the first closed chamber is arranged in series with the second closed chamber between the infrared light source and the second closed chamber.
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公开(公告)号：US09551614B2
公开(公告)日：2017-01-24
申请号：US14577130
申请日：2014-12-19
发明人： James Allen Cox
IPC分类号： G01J3/28 , G01J3/10 , G01J3/32 , G01J3/42 , G01N21/3504 , G01N21/03 , G01N21/359 , G01N21/39
CPC分类号： G01J3/10 , G01J3/108 , G01J3/32 , G01J3/42 , G01J2003/423 , G01N21/031 , G01N21/3504 , G01N21/359 , G01N2021/391
摘要： Devices, methods, and systems for cavity-enhanced spectroscopy are described herein. One system includes an optical frequency comb (OFC) coupled to a laser source, and a cavity coupled to the OFC comprising a number of mirrors, wherein at least one of the number of mirrors is coupled to a piezo-transducer configured to alter a position of the at least one of the number of mirrors.
摘要翻译： 本文描述了用于腔增强光谱的装置，方法和系统。 一个系统包括耦合到激光源的光学频率梳（OFC）和耦合到包括多个反射镜的OFC的空腔，其中多个反射镜中的至少一个耦合到压电换能器，其被配置为改变位置 的多个反射镜中的至少一个。
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公开(公告)号：US20150377704A1
公开(公告)日：2015-12-31
申请号：US14577130
申请日：2014-12-19
发明人： James Allen Cox
CPC分类号： G01J3/10 , G01J3/108 , G01J3/32 , G01J3/42 , G01J2003/423 , G01N21/031 , G01N21/3504 , G01N21/359 , G01N2021/391
摘要： Devices, methods, and systems for cavity-enhanced spectroscopy are described herein. One system includes an optical frequency comb (OFC) coupled to a laser source, and a cavity coupled to the OFC comprising a number of mirrors, wherein at least one of the number of mirrors is coupled to a piezo-transducer configured to alter a position of the at least one of the number of mirrors.
摘要翻译： 本文描述了用于腔增强光谱的装置，方法和系统。 一个系统包括耦合到激光源的光学频率梳（OFC）和耦合到包括多个反射镜的OFC的空腔，其中多个反射镜中的至少一个耦合到压电换能器，其被配置为改变位置 的多个反射镜中的至少一个。
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公开(公告)号：US20180284012A1
公开(公告)日：2018-10-04
申请号：US15759165
申请日：2016-09-07
发明人： Terry Marta , James Allen Cox , Bernard Fritz , Antony Phillips , Rodney Watts
IPC分类号： G01N21/17 , G01N21/3504 , G01N29/24 , G01N29/44 , G01N21/37
摘要： A non-dispersive photoacoustic gas detector includes an infrared light source, a first closed chamber, a first acoustic sensor in fluid communication with the first closed chamber, a second closed chamber, and a second acoustic sensor in fluid communication with the second closed chamber. The first closed chamber comprises a plurality of windows that are substantially transparent to infrared light from the infrared light source. The second closed chamber comprises at least one window that is substantially transparent to infrared light from the infrared light source, and the first closed chamber is arranged in series with the second closed chamber between the infrared light source and the second closed chamber.
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6.发明申请公开(公告)号：US20180045563A1
公开(公告)日：2018-02-15
申请号：US15555762
申请日：2016-03-03
发明人： Terry Marta , Rodney Royston Watts , Antony Leighton Phillips , Bernard Fritz , James Allen Cox
IPC分类号： G01J3/02 , G01N21/3504 , G01J3/42
摘要： Embodiments relate generally to systems and methods for filtering unwanted wavelengths from an IR detector. In some embodiments, it may be desired to remove or reduce the wavelengths absorbed by water, to reduce the effects of water on the detection of the target gas. In some embodiments, a filter glass may be used in the IR detector, wherein the filter glass comprises one or more materials that contain hydroxyls in their molecular structure, and wherein the spectral absorption properties of the filter glass are operable to at least reduce wavelengths of light absorbed by water from the optical, thereby reducing the IR detector's cross sensitivity to water.
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公开(公告)号：US20180299369A1
公开(公告)日：2018-10-18
申请号：US15759158
申请日：2016-09-07
发明人： Terry Marta , James Allen Cox , Bernard Fritz , Antony Phillips , Rodney Watts
IPC分类号： G01N21/17 , G01N21/37 , G01N21/3504
摘要： A non-dispersive photoacoustic gas detector comprises an infrared light source, a closed chamber, a gas sample disposed within the closed chamber, and an acoustic sensor in fluid communication with the dosed chamber. The dosed chamber comprises at least one window that is substantially transparent to infrared light from the infrared light source, and the gas sample comprises a gas or a mixture of at least two gases.
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