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公开(公告)号：US20210164837A1
公开(公告)日：2021-06-03
申请号：US17257526
申请日：2019-06-26
IPC分类号： G01J3/433 , G01J3/02 , G01N21/03 , G01N21/3504 , G01N21/39
摘要： A portable optical spectroscopy device is disclosed for analyzing gas samples and/or for measurement of species concentration, number density, or column density. The device includes a measuring chamber with the gas sample to be analyzed, a light source with at least one laser diode for emitting a laser beam along a light path running through the measuring chamber at least in certain regions, means for modulating the wavelength of the light beam emitted by the light source, and an optical detector device having a first optical detector and at least one second optical detector. At least a part of the light emitted by the laser diode is detected after the light has passed through the measuring chamber m-times, and at least a part of the light emitted by the laser diode is detected with the at least one second optical detector after the light has passed through the measuring chamber n-times, where n>m applies.
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公开(公告)号：US11656125B2
公开(公告)日：2023-05-23
申请号：US17257526
申请日：2019-06-26
IPC分类号： G01J3/433 , G01J3/02 , G01N21/03 , G01N21/3504 , G01N21/39
CPC分类号： G01J3/433 , G01J3/0272 , G01J3/0283 , G01N21/031 , G01N21/3504 , G01N21/39 , G01N2021/399 , G01N2201/0221 , G01N2201/0612
摘要： A portable optical spectroscopy device is disclosed for analyzing gas samples and/or for measurement of species concentration, number density, or column density. The device includes a measuring chamber with the gas sample to be analyzed, a light source with at least one laser diode for emitting a laser beam along a light path running through the measuring chamber at least in certain regions, means for modulating the wavelength of the light beam emitted by the light source, and an optical detector device having a first optical detector and at least one second optical detector. At least a part of the light emitted by the laser diode is detected after the light has passed through the measuring chamber m-times, and at least a part of the light emitted by the laser diode is detected with the at least one second optical detector after the light has passed through the measuring chamber n-times, where n>m applies.
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公开(公告)号：US20230314391A1
公开(公告)日：2023-10-05
申请号：US17594751
申请日：2020-05-08
发明人： Craig Millar , Robert Margrave , Terry Short , Chris Benwell , Iain Clark
IPC分类号： G01N33/00
CPC分类号： G01N33/0031 , G01N33/0075 , G01N33/0022
摘要： A portable gas analyzer includes multiple docking stations connected to a pneumatic flowpath through the gas analyzer. Modules are removably mounted to the docking stations. Some modules can be mounted at any one of the docking stations. The modules can include gas sensors and a microcontroller configured to generate data based on signals generated by the gas sensors. The modules are configured to simultaneously form each of electrical, mechanical, and pneumatic connections with the gas analyzer when mounted to the docking station.
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