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公开(公告)号：US10859491B2
公开(公告)日：2020-12-08
申请号：US16275948
申请日：2019-02-14
Applicant: Yokogawa Electric Corporation
Inventor： Kentaro Hazama , Junichi Matsuo , Nobuko Takekawa , Yuya Sugiyama
Abstract: A spectroscopic analysis apparatus includes a laser light source that emits laser light, of which wavelength changes, toward a reflector inside a probe, the probe being configured to be disposed in a flow passage of a measurement target fluid, a light receiver that receives the laser light reflected by the reflector, and a controller that analyzes the measurement target fluid using a result of reception acquired by the light receiver and controlling the laser light source. The controller controls the laser light source to perform at least one scan of the laser light, the controller controlling the laser light source such that a scanning time of the laser light is equal to or shorter than a light-receivable time of the laser, the scanning time being a time to scan the laser light emitted from the laser light source in a certain wavelength range, the light-receivable time being a time in which the laser light reflected by the reflector can be received by the light receiver.
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公开(公告)号：US09816918B2
公开(公告)日：2017-11-14
申请号：US14872759
申请日：2015-10-01
Applicant: YOKOGAWA ELECTRIC CORPORATION
Inventor： Kazuto Tamura , Kentaro Hazama , Makoto Kato
IPC: G01N21/00 , G01N21/31 , G01N21/61 , G01J3/02 , G02B7/00 , G01N21/01 , G01N21/39 , G01N21/53 , G01N21/85 , G01N15/06 , G01N21/3504 , G01J3/42 , G01N21/59
CPC classification number: G01N21/3103 , G01J3/0202 , G01J3/42 , G01N15/06 , G01N21/01 , G01N21/3504 , G01N21/39 , G01N21/534 , G01N21/59 , G01N21/61 , G01N21/85 , G01N2015/0693 , G01N2021/0181 , G01N2021/399 , G01N2021/536 , G01N2021/8578 , G01N2201/024 , G01N2201/06113 , G02B7/003
Abstract: A laser gas analyzer includes a light emitter which emits a laser light irradiated onto a gas to be measured; a light receiver which receives a laser light which transmitted the gas to be measured; a plurality of optical-axis adjustment mechanisms, one of which is provided in the light emitter and the other one of which is provided in the light receiver; a main display which is provided in one of the light emitter and the light receiver and displays thereon the measured result acquired by receiving the laser light which transmitted the gas to be measured; and a sub-display which is provided in the other one of the light emitter and the light receiver and displays thereon a part of the measured result displayed on the main display.
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公开(公告)号：US20190257749A1
公开(公告)日：2019-08-22
申请号：US16275948
申请日：2019-02-14
Applicant: Yokogawa Electric Corporation
Inventor： Kentaro Hazama , Junichi Matsuo , Nobuko Takekawa , Yuya Sugiyama
Abstract: A spectroscopic analysis apparatus includes a laser light source that emits laser light, of which wavelength changes, toward a reflector inside a probe, the probe being configured to be disposed in a flow passage of a measurement target fluid, a light receiver that receives the laser light reflected by the reflector, and a controller that analyzes the measurement target fluid using a result of reception acquired by the light receiver and controlling the laser light source. The controller controls the laser light source to perform at least one scan of the laser light, the controller controlling the laser light source such that a scanning time of the laser light is equal to or shorter than a light-receivable time of the laser, the scanning time being a time to scan the laser light emitted from the laser light source in a certain wavelength range, the light-receivable time being a time in which the laser light reflected by the reflector can be received by the light receiver.
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