JP7344396B2 - 水質センサ及び水中の物質濃度測定方法 - Google Patents

水質センサ及び水中の物質濃度測定方法 Download PDF

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Publication number
JP7344396B2
JP7344396B2 JP2022550140A JP2022550140A JP7344396B2 JP 7344396 B2 JP7344396 B2 JP 7344396B2 JP 2022550140 A JP2022550140 A JP 2022550140A JP 2022550140 A JP2022550140 A JP 2022550140A JP 7344396 B2 JP7344396 B2 JP 7344396B2
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Japan
Prior art keywords
light
optical path
transmission window
detector
measurement space
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JP2022550140A
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Japanese (ja)
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JPWO2022239641A1 (https=
Inventor
一誠 玉井
広大 小島
義靖 藤井
淳二 小島
健太 小笠原
大輝 ▲桑▼原
克則 矢澤
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Niterra Co Ltd
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NGK Spark Plug Co Ltd
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Publication of JPWO2022239641A1 publication Critical patent/JPWO2022239641A1/ja
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/18—Water
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3577—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing liquids, e.g. polluted water
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
    • G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke
    • G01N21/534—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke by measuring transmission alone, i.e. determining opacity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/06—Illumination; Optics
    • G01N2201/066—Modifiable path; multiple paths in one sample
    • G01N2201/0662—Comparing measurements on two or more paths in one sample
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/06—Illumination; Optics
    • G01N2201/066—Modifiable path; multiple paths in one sample
    • G01N2201/0668—Multiple paths; optimisable path length

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  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Medicinal Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
JP2022550140A 2021-05-13 2022-04-26 水質センサ及び水中の物質濃度測定方法 Active JP7344396B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2021081397 2021-05-13
JP2021081397 2021-05-13
PCT/JP2022/018880 WO2022239641A1 (ja) 2021-05-13 2022-04-26 水質センサ及び水中の物質濃度測定方法

Publications (2)

Publication Number Publication Date
JPWO2022239641A1 JPWO2022239641A1 (https=) 2022-11-17
JP7344396B2 true JP7344396B2 (ja) 2023-09-13

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JP2022550140A Active JP7344396B2 (ja) 2021-05-13 2022-04-26 水質センサ及び水中の物質濃度測定方法

Country Status (5)

Country Link
US (1) US20240255416A1 (https=)
EP (1) EP4339594A4 (https=)
JP (1) JP7344396B2 (https=)
CN (1) CN117295936A (https=)
WO (1) WO2022239641A1 (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7723452B1 (ja) * 2025-01-28 2025-08-14 Wota株式会社 フローセルシステム

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004294355A (ja) 2003-03-28 2004-10-21 Citizen Watch Co Ltd 濃度測定装置
JP2008070293A (ja) 2006-09-15 2008-03-27 Yokogawa Electric Corp 水質測定装置
US20100128256A1 (en) 2007-07-06 2010-05-27 Alasdair Ian Thomson Optical cell

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01313737A (ja) * 1988-06-14 1989-12-19 Canon Inc 検体検査装置
AU719048B2 (en) * 1995-04-06 2000-05-04 Alfa Laval Agri Ab Method and apparatus for quantitative particle determination in fluids
JPH10108857A (ja) * 1996-10-04 1998-04-28 Hitachi Ltd 生化学計測装置
GB0524225D0 (en) 2005-11-29 2006-01-04 Amersham Biosciences Ab Methods and apparatus for detecting and measuring the concentration of a substance in a solution
WO2011077306A1 (en) * 2009-12-25 2011-06-30 Koninklijke Philips Electronics N.V. Apparatuses and methods for measuring uv absorption rate
BR112018068208B1 (pt) * 2016-03-09 2023-12-05 Ysi, Inc. Sensor óptico de nitrato e método para medição multiparamétrica da qualidade de água
JP7032729B2 (ja) 2017-12-15 2022-03-09 国立大学法人豊橋技術科学大学 硝酸イオンおよび亜硝酸イオンの濃度検出方法および濃度検出装置ならびに植物生長・延命剤製造装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004294355A (ja) 2003-03-28 2004-10-21 Citizen Watch Co Ltd 濃度測定装置
JP2008070293A (ja) 2006-09-15 2008-03-27 Yokogawa Electric Corp 水質測定装置
US20100128256A1 (en) 2007-07-06 2010-05-27 Alasdair Ian Thomson Optical cell

Also Published As

Publication number Publication date
US20240255416A1 (en) 2024-08-01
JPWO2022239641A1 (https=) 2022-11-17
CN117295936A (zh) 2023-12-26
EP4339594A4 (en) 2025-05-07
EP4339594A1 (en) 2024-03-20
WO2022239641A1 (ja) 2022-11-17

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