Title:
GAS CONCENTRATION MEASURING DEVICE
Document Type and Number:
Japanese Patent JP2020016472
Kind Code:
A
Abstract:
To provide a gas concentration measuring device with which it is possible to easily and quickly measure the accurate concentration of a gas to be detected.SOLUTION: Provided is a gas concentration measuring device comprising: a gas space inclusion member in which a space where a gas to be detected flows or a space where a gas to be detected stays is included; a detection light source for radiating detection light; a reflection member for reflecting the detection light passing through at least a portion of the gas space inclusion member; a light receiving unit for receiving reflected light from the reflection member and outputting a signal that corresponds to the light intensity of received light; and a concentration calculation unit for calculating the concentration of the gas to be detected on the basis of the signal outputted by the light receiving unit.SELECTED DRAWING: Figure 1
Inventors:
MATSUI SHUNSUKE
SONE KEIICHI
ABE TAKESHI
URABE YASUHIKO
HARA TAKESHI
SONE KEIICHI
ABE TAKESHI
URABE YASUHIKO
HARA TAKESHI
Application Number:
JP2018137880A
Publication Date:
January 30, 2020
Filing Date:
July 23, 2018
Export Citation:
Assignee:
TOKYO METRO SEWERAGE SERV CORP
TOKYO GAS ENG SOLUTIONS CORP
TOKYO GAS ENG SOLUTIONS CORP
International Classes:
G01N21/39; G01N21/03
Domestic Patent References:
| JP2018091757A | 2018-06-14 | |||
| JP2000046737A | 2000-02-18 | |||
| JP2007040887A | 2007-02-15 | |||
| JPH0448246A | 1992-02-18 | |||
| JPS5535265A | 1980-03-12 | |||
| JP2017211357A | 2017-11-30 | |||
| JPH06308020A | 1994-11-04 | |||
| JP2013238496A | 2013-11-28 |
Other References:
安部 健ら: "赤外レーザー吸収を用いた硫化水素検知機の開発", 第５０回下水道研究発表会講演集, JPN6022053907, 2013, pages 1045 - 1047, ISSN: 0004950806
Attorney, Agent or Firm:
Shigenori Hayashi