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公开(公告)号：US09671333B2
公开(公告)日：2017-06-06
申请号：US14718400
申请日：2015-05-21
Applicant: YOKOGAWA ELECTRIC CORPORATION
Inventor： Takaaki Hirata , Yasuhiko Mitsumoto , Masaya Ooyama , Nobuhiko Kanbara , Naoyuki Fujimura , Minoru Maeda , Tadashi Sugiyama , Alan Cowie , Jie Zhu
IPC: G01N21/00 , G01N21/39 , G01N21/3504 , G01N21/359 , G01N33/00 , G01N21/31
CPC classification number: G01N21/39 , G01N21/3103 , G01N21/3504 , G01N21/359 , G01N33/0027 , G01N2021/399 , G01N2201/0612
Abstract: A laser gas analyzer includes a wavelength-variable laser having a wide wavelength-variable width, a light-split module configured to split an output light of the wavelength-variable laser into a measurement light and a reference light, a first gas cell into which gases to be measured are introduced, and the measurement light is made to be incident, and a data processor configured to obtain an absorption spectrum of each of the gases to be measured based on a reference signal related to the reference light and an absorption signal related to an output light of the first gas cell, and to obtain concentrations of the respective gases to be measured.
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公开(公告)号：US20150260646A1
公开(公告)日：2015-09-17
申请号：US14718400
申请日：2015-05-21
Applicant: YOKOGAWA ELECTRIC CORPORATION
Inventor： Takaaki Hirata , Yasuhiko Mitsumoto , Masaya Ooyama , Nobuhiko Kanbara , Naoyuki Fujimura , Minoru Maeda , Tadashi Sugiyama , Alan Cowie , Jie Zhu
IPC: G01N21/3504 , G01N21/31 , G01N21/39
CPC classification number: G01N21/39 , G01N21/3103 , G01N21/3504 , G01N21/359 , G01N33/0027 , G01N2021/399 , G01N2201/0612
Abstract: A laser gas analyzer includes a wavelength-variable laser having a wide wavelength-variable width, a light-split module configured to split an output light of the wavelength-variable laser into a measurement light and a reference light, a first gas cell into which gases to be measured are introduced, and the measurement light is made to be incident, and a data processor configured to obtain an absorption spectrum of each of the gases to be measured based on a reference signal related to the reference light and an absorption signal related to an output light of the first gas cell, and to obtain concentrations of the respective gases to be measured.
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Patent Agency Ranking
公开(公告)号：US20190317018A1
公开(公告)日：2019-10-17
申请号：US16376765
申请日：2019-04-05
Applicant: Yokogawa Electric Corporation
Inventor： Yoshitaka Kobayashi , Junichi Matsuo , Naoyuki Fujimura
Abstract: A gas analyzer includes an optical emitter that irradiates measurement light into a measurement region including a measured-gas, a first optical receiver that receives the measurement light passing through the measurement region, a splitting unit between the optical emitter and the measurement region that splits off a portion of the measurement light irradiated from the optical emitter to yield reference light, a reference unit, and an optical component. The reference unit holds a gas containing a measurement target component identical with the measured-gas but at a known concentration and a second optical receiver that receives the reference light passing through the region including the gas. The optical component is disposed between the splitting unit and the region and expands the beam diameter of the reference light to be larger at the second optical receiver than the receiving diameter of the second optical receiver.
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公开(公告)号：US20130135619A1
公开(公告)日：2013-05-30
申请号：US13687456
申请日：2012-11-28
Applicant: YOKOGAWA ELECTRIC CORPORATION
Inventor： Takaaki Hirata , Yasuhiko Mitsumoto , Masaya Ooyama , Nobuhiko Kanbara , Naoyuki Fujimura , Minoru Maeda , Tadashi Sugiyama , Alan Cowie , Jie Zhu
IPC: G01N21/39
CPC classification number: G01N21/39 , G01N21/3103 , G01N21/3504 , G01N21/359 , G01N33/0027 , G01N2021/399 , G01N2201/0612
Abstract: A laser gas analyzer includes a wavelength-variable laser having a wide wavelength-variable width, a light-split module configured to split an output light of the wavelength-variable laser into a measurement light and a reference light, a first gas cell into which gases to be measured are introduced, and the measurement light is made to be incident, and a data processor configured to obtain an absorption spectrum of each of the gases to be measured based on a reference signal related to the reference light and an absorption signal related to an output light of the first gas cell, and to obtain concentrations of the respective gases to be measured.
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公开(公告)号：US10908082B2
公开(公告)日：2021-02-02
申请号：US16376765
申请日：2019-04-05
Applicant: Yokogawa Electric Corporation
Inventor： Yoshitaka Kobayashi , Junichi Matsuo , Naoyuki Fujimura
Abstract: A gas analyzer includes an optical emitter that irradiates measurement light into a measurement region including a measured-gas, a first optical receiver that receives the measurement light passing through the measurement region, a splitting unit between the optical emitter and the measurement region that splits off a portion of the measurement light irradiated from the optical emitter to yield reference light, a reference unit, and an optical component. The reference unit holds a gas containing a measurement target component identical with the measured-gas but at a known concentration and a second optical receiver that receives the reference light passing through the region including the gas. The optical component is disposed between the splitting unit and the region and expands the beam diameter of the reference light to be larger at the second optical receiver than the receiving diameter of the second optical receiver.
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公开(公告)号：US09347877B2
公开(公告)日：2016-05-24
申请号：US13687456
申请日：2012-11-28
Applicant: Yokogawa Electric Corporation
Inventor： Takaaki Hirata , Yasuhiko Mitsumoto , Masaya Ooyama , Nobuhiko Kanbara , Naoyuki Fujimura , Minoru Maeda , Tadashi Sugiyama , Alan Cowie , Jie Zhu
IPC: G01N21/39 , G01N21/3504 , G01N21/359
CPC classification number: G01N21/39 , G01N21/3103 , G01N21/3504 , G01N21/359 , G01N33/0027 , G01N2021/399 , G01N2201/0612
Abstract: A laser gas analyzer includes a wavelength-variable laser having a wide wavelength-variable width, a light-split module configured to split an output light of the wavelength-variable laser into a measurement light and a reference light, a first gas cell into which gases to be measured are introduced, and the measurement light is made to be incident, and a data processor configured to obtain an absorption spectrum of each of the gases to be measured based on a reference signal related to the reference light and an absorption signal related to an output light of the first gas cell, and to obtain concentrations of the respective gases to be measured.
Abstract translation: 一种激光气体分析仪，包括宽波长可变宽度的波长可变激光器，配置成将波长可变激光器的输出光分成测量光和参考光的光分离模块，第一气室 引入待测量的气体，并使测量光入射;以及数据处理器，被配置为基于与参考光相关的参考信号和相关的吸收信号来获得每个待测量的气体的吸收光谱 到第一气室的输出光，并且获得待测量的各个气体的浓度。
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公开(公告)号：US20150185144A1
公开(公告)日：2015-07-02
申请号：US14643628
申请日：2015-03-10
Applicant: YOKOGAWA ELECTRIC CORPORATION
Inventor： Takaaki Hirata , Yasuhiko Mitsumoto , Masaya Ooyama , Nobuhiko Kanbara , Naoyuki Fujimura , Minoru Maeda , Tadashi Sugiyama , Alan Cowie , Jie Zhu
IPC: G01N21/39 , G01N21/359 , G01N33/00 , G01N21/3504
CPC classification number: G01N21/39 , G01N21/3103 , G01N21/3504 , G01N21/359 , G01N33/0027 , G01N2021/399 , G01N2201/0612
Abstract: A laser gas analyzer includes a wavelength-variable laser having a wide wavelength-variable width, a light-split module configured to split an output light of the wavelength-variable laser into a measurement light and a reference light, a first gas cell into which gases to be measured are introduced, and the measurement light is made to be incident, and a data processor configured to obtain an absorption spectrum of each of the gases to be measured based on a reference signal related to the reference light and an absorption signal related to an output light of the first gas cell, and to obtain concentrations of the respective gases to be measured.
Abstract translation: 一种激光气体分析仪，包括宽波长可变宽度的波长可变激光器，配置成将波长可变激光器的输出光分成测量光和参考光的光分离模块，第一气室 引入待测量的气体，并使测量光入射;以及数据处理器，被配置为基于与参考光相关的参考信号和相关的吸收信号来获得每个待测量的气体的吸收光谱 到第一气室的输出光，并且获得待测量的各个气体的浓度。
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