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公开(公告)号：US20210333204A1
公开(公告)日：2021-10-28
申请号：US16858298
申请日：2020-04-24
IPC分类号： G01N21/3518 , G01N33/00
摘要： Methods, apparatuses, and systems for improving gas detecting devices are provided. An example gas detecting device may include a receiver element. In some examples, the receiver element may include a sample filter component and a reference filter component. In some examples, the sample filter component may be positioned coaxially with the reference filter component.
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2.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：US11480519B2
公开(公告)日：2022-10-25
申请号：US16858298
申请日：2020-04-24
IPC分类号： G01N21/3518 , G01N33/00
摘要： Methods, apparatuses, and systems for improving gas detecting devices are provided. An example gas detecting device may include a receiver element. In some examples, the receiver element may include a sample filter component and a reference filter component. In some examples, the sample filter component may be positioned coaxially with the reference filter component.
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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：US12117393B2
公开(公告)日：2024-10-15
申请号：US18311146
申请日：2023-05-02
IPC分类号： G01N21/3504 , G01N21/31 , G01N21/61
CPC分类号： G01N21/3504 , G01N2021/3166 , G01N21/61
摘要： Methods, apparatuses, and systems for diagnosing misalignment in gas detecting devices are provided. An example method may include causing at least one detector component of a receiver element of the open path gas detecting device to generate a first light intensity indication corresponding to first infrared light; causing the at least one detector component to generate a second light intensity indication corresponding to second infrared light; and generating an alignment indication based at least in part on the first light intensity indication and the second light intensity indication.
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公开(公告)号：US11674894B2
公开(公告)日：2023-06-13
申请号：US16858291
申请日：2020-04-24
IPC分类号： G01N21/3504 , G01N21/61 , G01N21/31
CPC分类号： G01N21/3504 , G01N21/61 , G01N2021/3166
摘要： Methods, apparatuses, and systems for diagnosing misalignment in gas detecting devices are provided. An example method may include causing at least one detector component of a receiver element of the open path gas detecting device to generate a first light intensity indication corresponding to first infrared light; causing the at least one detector component to generate a second light intensity indication corresponding to second infrared light; and generating an alignment indication based at least in part on the first light intensity indication and the second light intensity indication.
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公开(公告)号：US20210333202A1
公开(公告)日：2021-10-28
申请号：US16858291
申请日：2020-04-24
IPC分类号： G01N21/3504
摘要： Methods, apparatuses, and systems for diagnosing misalignment in gas detecting devices are provided. An example method may include causing at least one detector component of a receiver element of the open path gas detecting device to generate a first light intensity indication corresponding to first infrared light; causing the at least one detector component to generate a second light intensity indication corresponding to second infrared light; and generating an alignment indication based at least in part on the first light intensity indication and the second light intensity indication.
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