JPS5421896A - No2 densitometer - Google Patents

No2 densitometer

Info

Publication number
JPS5421896A
JPS5421896A JP8716877A JP8716877A JPS5421896A JP S5421896 A JPS5421896 A JP S5421896A JP 8716877 A JP8716877 A JP 8716877A JP 8716877 A JP8716877 A JP 8716877A JP S5421896 A JPS5421896 A JP S5421896A
Authority
JP
Japan
Prior art keywords
concentration
densitometer
graduations
indicator
meter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP8716877A
Other languages
Japanese (ja)
Inventor
Hideo Tsukamoto
Naokazu Takeuchi
Michio Abe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP8716877A priority Critical patent/JPS5421896A/en
Publication of JPS5421896A publication Critical patent/JPS5421896A/en
Pending legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

PURPOSE:To realize equal interval graduations for concentration without adding logarithmic transducer or the like to meter or their indicator by combining light source, detector and NO2 absorption spectrum in proper conditions and proportionally relating the signal strength and concentration in a wide range.
JP8716877A 1977-07-20 1977-07-20 No2 densitometer Pending JPS5421896A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8716877A JPS5421896A (en) 1977-07-20 1977-07-20 No2 densitometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8716877A JPS5421896A (en) 1977-07-20 1977-07-20 No2 densitometer

Publications (1)

Publication Number Publication Date
JPS5421896A true JPS5421896A (en) 1979-02-19

Family

ID=13907447

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8716877A Pending JPS5421896A (en) 1977-07-20 1977-07-20 No2 densitometer

Country Status (1)

Country Link
JP (1) JPS5421896A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6056103A (en) * 1983-09-08 1985-04-01 Hokuetsu Kogyo Co Ltd Oil supply device for screw expansion apparatus
JPS6155319A (en) * 1984-08-28 1986-03-19 Mayekawa Mfg Co Ltd Power generating unit using displacement rotary air compressor
JPH0575654U (en) * 1992-03-13 1993-10-15 株式会社堀場製作所 Interference compensation type N20 gas analyzer
WO1999053297A1 (en) * 1998-04-14 1999-10-21 Instrumentarium Corporation Sensor assembly and method for measuring nitrogen dioxide
JP2016109662A (en) * 2014-12-01 2016-06-20 横河電機株式会社 Laser gas analyzer
US9816918B2 (en) 2014-12-01 2017-11-14 Yokogawa Electric Corporation Laser gas analyzer

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6056103A (en) * 1983-09-08 1985-04-01 Hokuetsu Kogyo Co Ltd Oil supply device for screw expansion apparatus
JPH0137563B2 (en) * 1983-09-08 1989-08-08 Hokuetsu Kogyo Co
JPS6155319A (en) * 1984-08-28 1986-03-19 Mayekawa Mfg Co Ltd Power generating unit using displacement rotary air compressor
JPH0235856B2 (en) * 1984-08-28 1990-08-14 Maekawa Seisakusho Kk
JPH0575654U (en) * 1992-03-13 1993-10-15 株式会社堀場製作所 Interference compensation type N20 gas analyzer
WO1999053297A1 (en) * 1998-04-14 1999-10-21 Instrumentarium Corporation Sensor assembly and method for measuring nitrogen dioxide
US6791689B1 (en) 1998-04-14 2004-09-14 Instrumentarium Corp. Sensor assembly and method for measuring nitrogen dioxide
JP2016109662A (en) * 2014-12-01 2016-06-20 横河電機株式会社 Laser gas analyzer
US9816918B2 (en) 2014-12-01 2017-11-14 Yokogawa Electric Corporation Laser gas analyzer

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