公开(公告)号：US11150182B2

公开(公告)日：2021-10-19

申请号：US16648058

申请日：2018-09-05

Applicant: YOKOGAWA ELECTRIC CORPORATION

Inventor： Yoshihisa Hidaka ,  Gen Matsuno ,  Shigeru Takezawa ,  Hideko Tanaka ,  Kaori Sakuma ,  Akihiro Murata ,  Toshiki Ohara

IPC: G01N21/359 ,  G01N1/24 ,  G01N21/3504 ,  G01N21/3577 ,  G01N21/85

Abstract: A method for testing an analysis apparatus that analyzes a first fluid flowing through a pipe using light that has passed through a probe attached to and disposed inside the pipe such that a portion of a light path passes outside a housing of the probe. The method includes: after a second fluid that absorbs less of the light than the first fluid has been introduced into the pipe, introducing a third fluid having predetermined absorption characteristics into the housing of the probe; and analyzing the absorption characteristics of the third fluid using the light that has passed through the probe.

公开(公告)号：US20200256792A1

公开(公告)日：2020-08-13

申请号：US16648058

申请日：2018-09-05

Applicant: YOKOGAWA ELECTRIC CORPORATION

Inventor： Yoshihisa Hidaka ,  Gen Matsuno ,  Shigeru Takezawa ,  Hideko Tanaka ,  Kaori Sakuma ,  Akihiro Murata ,  Toshiki Ohara

IPC: G01N21/359 ,  G01N21/85 ,  G01N21/3577 ,  G01N21/3504 ,  G01N1/24

Abstract: A method for testing an analysis apparatus that analyzes a first fluid flowing through a pipe using light that has passed through a probe attached to and disposed inside the pipe such that a portion of a light path passes outside a housing of the probe. The method includes: after a second fluid that absorbs less of the light than the first fluid has been introduced into the pipe, introducing a third fluid having predetermined absorption characteristics into the housing of the probe; and analyzing the absorption characteristics of the third fluid using the light that has passed through the probe.

公开(公告)号：US10605724B2

公开(公告)日：2020-03-31

申请号：US15161359

申请日：2016-05-23

Applicant: YOKOGAWA ELECTRIC CORPORATION

Inventor： Shigeru Takezawa ,  Takuya Yahagi ,  Yoshihisa Hidaka

IPC: G01N21/3504 ,  G01N21/85 ,  G01N33/00 ,  G01N9/36 ,  F23K5/00 ,  G01N33/22

Abstract: A multi-component gas analysis system includes a spectrometric analysis device configured to obtain ratio of each of first components in a multi-component gas based on an absorption spectrum of light that has transmitted through the multi-component gas; a density measurement device configured to measure a first density of the multi-component gas; and a calculation device configured to calculate a ratio of each of second components in the multi-component gas using the ratio of each of the first components obtained by the spectrometric analysis device and the first density measured by the density measurement device, the second components being components that cannot be obtained by the spectrometric analysis device.