FI773457A - Infraroedfuktighetsmaetanordning - Google Patents

Infraroedfuktighetsmaetanordning

Info

Publication number
FI773457A
FI773457A FI773457A FI773457A FI773457A FI 773457 A FI773457 A FI 773457A FI 773457 A FI773457 A FI 773457A FI 773457 A FI773457 A FI 773457A FI 773457 A FI773457 A FI 773457A
Authority
FI
Finland
Prior art keywords
infraroedfuktighetsmaetanordning
Prior art date
Application number
FI773457A
Other languages
English (en)
Other versions
FI71201B (fi
FI71201C (fi
Inventor
John W Mactaggart
Original Assignee
Sentrol Systems 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 Sentrol Systems Ltd filed Critical Sentrol Systems Ltd
Publication of FI773457A publication Critical patent/FI773457A/fi
Publication of FI71201B publication Critical patent/FI71201B/fi
Application granted granted Critical
Publication of FI71201C publication Critical patent/FI71201C/fi

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/314Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3554Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for determining moisture content
    • G01N21/3559Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for determining moisture content in sheets, e.g. in paper
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84Systems specially adapted for particular applications
    • G01N21/86Investigating moving sheets
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84Systems specially adapted for particular applications
    • G01N21/86Investigating moving sheets
    • G01N2021/8609Optical head specially adapted
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84Systems specially adapted for particular applications
    • G01N21/86Investigating moving sheets
    • G01N2021/8609Optical head specially adapted
    • G01N2021/8618Optical head specially adapted with an optically integrating part, e.g. hemisphere
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84Systems specially adapted for particular applications
    • G01N21/86Investigating moving sheets
    • G01N2021/8663Paper, e.g. gloss, moisture content

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)
FI773457A 1976-12-27 1977-11-16 Anordning foer maetning av fraon ett visst vaerde avvikande avikelser i en viss egenskap hos material FI71201C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US75417476 1976-12-27
US05/754,174 US4171918A (en) 1976-12-27 1976-12-27 Infrared moisture measuring apparatus

Publications (3)

Publication Number Publication Date
FI773457A true FI773457A (fi) 1978-06-28
FI71201B FI71201B (fi) 1986-08-14
FI71201C FI71201C (fi) 1986-11-24

Family

ID=25033739

Family Applications (1)

Application Number Title Priority Date Filing Date
FI773457A FI71201C (fi) 1976-12-27 1977-11-16 Anordning foer maetning av fraon ett visst vaerde avvikande avikelser i en viss egenskap hos material

Country Status (5)

Country Link
US (1) US4171918A (fi)
JP (1) JPS5382496A (fi)
CA (1) CA1080997A (fi)
FI (1) FI71201C (fi)
GB (1) GB1589251A (fi)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS591977B2 (ja) * 1978-01-25 1984-01-14 株式会社京都第一科学 呈色試験紙を用いた分析方法
DE2910240A1 (de) * 1979-03-15 1980-09-25 Rolf Dr Bartke Vorrichtung zur ermittelung des reflexionsvermoegens der oberflaeche eines messobjektes
JPS6015015B2 (ja) * 1979-06-29 1985-04-17 株式会社 レオ技研 路面水分検知装置
US4463261A (en) * 1981-05-07 1984-07-31 National Research Development Corporation Analysis apparatus
US4602160A (en) * 1983-09-28 1986-07-22 Sentrol Systems Ltd. Infrared constituent analyzer and control system
US4577104A (en) * 1984-01-20 1986-03-18 Accuray Corporation Measuring the percentage or fractional moisture content of paper having a variable infrared radiation scattering characteristic and containing a variable amount of a broadband infrared radiation absorber
FI78356C (fi) * 1985-09-16 1989-07-10 Puumalaisen Tutkimuslaitos Oy Metod foer maetning av fuktighet.
US4823008A (en) * 1987-11-05 1989-04-18 Process Automation Business, Inc. Apparatus and methods employing infrared absorption means to measure the moisture content of heavy grades of paper
US5406378A (en) * 1992-04-29 1995-04-11 Mpb Technologies Inc. Method and apparatus for non-contact and rapid identification of wood species
US5708278A (en) * 1996-05-13 1998-01-13 Johnson & Johnson Clinical Diagnostics, Inc. Reflective wetness detector
GB2334097C (en) * 1998-02-06 2005-09-14 British Gas Plc Method and apparatus to detect the presence of water on a surface
US6292756B1 (en) 1998-02-26 2001-09-18 Premier Instruments, Inc. Narrow band infrared water fraction apparatus for gas well and liquid hydrocarbon flow stream use
US7079230B1 (en) 1999-07-16 2006-07-18 Sun Chemical B.V. Portable authentication device and method of authenticating products or product packaging
JP2003004631A (ja) * 2001-06-18 2003-01-08 Kawasaki Kiko Co Ltd 成分計測装置
US7301164B2 (en) * 2004-01-30 2007-11-27 Abb Inc. Measuring apparatus
CH709493A2 (de) * 2014-04-14 2015-10-15 Fondarex Sa Vorrichtung und Verfahren zur Messung der Feuchtigkeit in Druckgiessformen.
JP2023170176A (ja) * 2022-05-18 2023-12-01 キヤノン株式会社 水分検知装置および画像形成装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH422370A (de) * 1963-11-06 1966-10-15 Gretag Ag Photoelektrisches Messgerät
GB1302196A (fi) * 1969-04-23 1973-01-04
GB1367884A (en) * 1970-09-30 1974-09-25 Mullard Ltd Temperature compensating circuits for photoconductive cells
US3853407A (en) * 1973-04-23 1974-12-10 Sensores Corp Multiple path spectrophotometer method and apparatus
US3936637A (en) * 1974-05-13 1976-02-03 Honeywell Inc. Thermally stimulated detrapping of charged carriers in cryogenic photoconductive material
US3878107A (en) * 1974-06-24 1975-04-15 Philco Ford Corp Electronically compensated rotating gas cell analyzer
US4006358A (en) * 1975-06-12 1977-02-01 Measurex Corporation Method and apparatus for measuring the amount of moisture that is associated with a web of moving material

Also Published As

Publication number Publication date
US4171918A (en) 1979-10-23
JPS5382496A (en) 1978-07-20
GB1589251A (en) 1981-05-07
FI71201B (fi) 1986-08-14
CA1080997A (en) 1980-07-08
FI71201C (fi) 1986-11-24
JPS6222093B2 (fi) 1987-05-15

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Legal Events

Date Code Title Description
MA Patent expired
MA Patent expired

Owner name: SENTROL SYSTEMS LTD.