公开(公告)号：US09551652B2

公开(公告)日：2017-01-24

申请号：US14950029

申请日：2015-11-24

Applicant: TAKIMOTOGIKEN KOGYO CO., LTD. ,  C.S.D CO., LTD.

Inventor： Masateru Takimoto ,  Katsuji Hotta

IPC: G01N21/33 ,  G01N21/61 ,  G01N21/85 ,  G01N33/00 ,  G01N21/15

CPC classification number: G01N21/33 ,  G01N21/61 ,  G01N21/85 ,  G01N33/0036 ,  G01N2021/151 ,  G01N2021/158 ,  G01N2021/8578 ,  G01N2201/023

Abstract: A measuring apparatus is capable of measuring chlorine dioxide gas concentration by correcting for changes in light emission of an LED due to heating and passage of time, and applying the correction to the optical absorption rate of chlorine dioxide gas at a photodetector. The measuring apparatus includes a main body with a measuring passage surrounded by a pair of transparent bodies, into which specimen gas or fresh air is fed and then discharged, and a comparing passage arranged in the vicinity of the measuring passage, into which no specimen gas is fed, first and second LEDs for emitting ultraviolet light which both have identical properties and are mounted at one end of the measuring passage and at one end of the comparing passage, respectively, and first and second photodetectors for receiving light respectively from the first and second LEDs and detecting a light emission amount thereof.

Abstract translation: 测量装置能够通过校正由于加热和时间的推移引起的LED的发光变化来测量二氧化氯气体浓度，并且对光电检测器的二氧化氯气体的光吸收率进行校正。 测量装置包括：主体，具有由一对透明体包围的测量通道，试样气体或新鲜空气被供给并排出，并且设置在测量通道附近的比较通道，没有样本气体 用于发射紫外线的第一和第二LED分别具有相同的特性并且分别安装在测量通道的一端和比较通道的一端;以及第一和第二光电检测器，用于分别接收来自第一和 第二LED并检测其发光量。

公开(公告)号：US20160153897A1

公开(公告)日：2016-06-02

申请号：US14950029

申请日：2015-11-24

Applicant: C.S.D CO., LTD. ,  TAKIMOTOGIKEN KOGYO CO., LTD.

Inventor： Masateru TAKIMOTO ,  Katsuji HOTTA

IPC: G01N21/33 ,  G01N33/00

CPC classification number: G01N21/33 ,  G01N21/61 ,  G01N21/85 ,  G01N33/0036 ,  G01N2021/151 ,  G01N2021/158 ,  G01N2021/8578 ,  G01N2201/023

Abstract: A measuring apparatus is capable of measuring chlorine dioxide gas concentration by correcting for changes in light emission of an LED due to heating and passage of time, and applying the correction to the optical absorption rate of chlorine dioxide gas at a photodetector. The measuring apparatus includes a main body with a measuring passage surrounded by a pair of transparent bodies, into which specimen gas or fresh air is fed and then discharged, and a comparing passage arranged in the vicinity of the measuring passage, into which no specimen gas is fed, first and second LEDs for emitting ultraviolet light which both have identical properties and are mounted at one end of the measuring passage and at one end of the comparing passage, respectively, and first and second photodetectors for receiving light respectively from the first and second LEDs and detecting a light emission amount thereof.

Abstract translation: 测量装置能够通过校正由于加热和时间的推移引起的LED的发光变化来测量二氧化氯气体浓度，并且对光电检测器的二氧化氯气体的光吸收率进行校正。 测量装置包括：主体，具有由一对透明体包围的测量通道，试样气体或新鲜空气被供给并排出，并且设置在测量通道附近的比较通道，没有样本气体 用于发射紫外线的第一和第二LED分别具有相同的特性并且分别安装在测量通道的一端和比较通道的一端;以及第一和第二光电检测器，用于分别接收来自第一和 第二LED并检测其发光量。