公开(公告)号：US20170082537A1

公开(公告)日：2017-03-23

申请号：US15366054

申请日：2016-12-01

Applicant: HORIBA, LTD.

Inventor： Takuya IDO ,  Yasushi HIRATA ,  Toshiaki NAKAGAWA

IPC: G01N21/55 ,  G01N33/00

CPC classification number: G01N21/55 ,  G01N21/3504 ,  G01N21/61 ,  G01N21/8507 ,  G01N33/0036 ,  G01N2021/158 ,  G01N2021/8514 ,  G01N2021/8578 ,  G01N2201/0231 ,  G01N2201/06113 ,  G01N2201/0636

Abstract: A gas analysis device includes a probe tube, a flange, an optical system member, and heaters. The probe tube includes an optical path through which measurement light is projected onto a prescribed measurement region of a sample gas flowing through a flue and/or is received from the measurement region. The flange is fixed to the outer periphery of the probe tube and is attached to a pipe side wall. The optical system member projects measurement light onto the sample gas S within the measurement region and/or receives measurement light from the measurement region. The heaters are disposed within the flange and heats the portion where the probe tube and flange are fixed to each other.

公开(公告)号：US20250012712A1

公开(公告)日：2025-01-09

申请号：US18574020

申请日：2022-05-25

Applicant: HORIBA, LTD.

Inventor： Kohei TACHIBANA ,  Keishi NAKAMURA ,  Kodai NIINA ,  Daisuke MIYAWAKI ,  Tsuyoshi WATANABE ,  Takuya IDO

IPC: G01N21/31 ,  G01N33/00

Abstract: To appropriately take explosion-proof measures for an analysis device while suppressing consumption of a purge gas, an analysis device includes a filling unit, an irradiation unit, a propagation unit, a housing, a purge gas introduction unit, and an explosion-proof gas introduction unit. The filling unit is filled with a sample gas containing a gas to be measured. The irradiation unit emits measurement light to be used for analyzing the gas to be measured. The propagation unit is disposed between the filling unit and the irradiation unit, so as to form a propagation space for propagating the measurement light emitted from the irradiation unit to the filling unit. The housing houses the filling unit, the irradiation unit, and the propagation unit. The purge gas introduction unit introduces the purge gas into the propagation space. The explosion-proof gas introduction unit introduces an explosion-proof gas into the internal space of the housing.

公开(公告)号：US20240146020A1

公开(公告)日：2024-05-02

申请号：US18280195

申请日：2022-02-21

Applicant: HORIBA, LTD.

Inventor： Yusuke AWANE ,  Makoto MATSUHAMA ,  Kosuke TSUKATANI ,  Kodai NIINA ,  Takuya IDO

IPC: H01S5/028 ,  G01N21/31 ,  G01N33/00 ,  H01S5/022

CPC classification number: H01S5/028 ,  G01N21/31 ,  G01N33/0027 ,  H01S5/022 ,  G01N2201/06113

Abstract: To suppress individual differences in intensity of output laser light for each semiconductor laser device as much as possible while suppressing generation of stray light in a package of the semiconductor laser device, provided is a semiconductor laser device used for optical analysis, including: a package that accommodates a semiconductor laser element therein; and a light reflection reducing member that is provided inside the package and suppresses reflection of light emitted from the semiconductor laser element, in which the light reflection reducing member is bonded to an inner surface of the package.

公开(公告)号：US20170205336A1

公开(公告)日：2017-07-20

申请号：US15406932

申请日：2017-01-16

Applicant: HORIBA, LTD.

Inventor： Takuya IDO

IPC: G01N21/27

CPC classification number: G01N21/274 ,  G01J3/28 ,  G01J3/42 ,  G01J2003/423 ,  G01N21/314 ,  G01N21/3504 ,  G01N21/3554 ,  G01N21/359 ,  G01N21/39 ,  G01N21/8507 ,  G01N2021/8521 ,  G01N2201/0612 ,  G01N2201/127

Abstract: To check an influence to an absorbance due to a temporal variation of measuring light in an analyzing apparatus, the analyzing apparatus includes a reference gas filling space, a spectrum generating portion, and a spectrum comparing portion. The reference gas filling space is formed on an optical path of measuring light and is filled with a reference gas different from a measurement target gas at a first concentration. The spectrum generating portion generates measured spectrum data, associating a wavelength of a detection light beam as the measuring light after passing through the reference gas filling space with a relative intensity of the detection light beam. The spectrum comparing portion calculates a difference between the measured spectrum data and reference absorption spectrum data obtained by measuring in advance an absorption spectrum of the reference gas at the first concentration by a direct absorption method.