JPH0545137B2 - - Google Patents

Info

Publication number
JPH0545137B2
JPH0545137B2 JP29606485A JP29606485A JPH0545137B2 JP H0545137 B2 JPH0545137 B2 JP H0545137B2 JP 29606485 A JP29606485 A JP 29606485A JP 29606485 A JP29606485 A JP 29606485A JP H0545137 B2 JPH0545137 B2 JP H0545137B2
Authority
JP
Japan
Prior art keywords
light
paper
signal
reflected light
once
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.)
Expired - Lifetime
Application number
JP29606485A
Other languages
English (en)
Japanese (ja)
Other versions
JPS62156544A (ja
Inventor
Hirotoshi Ishikawa
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.)
Yokogawa Electric Corp
Original Assignee
Yokogawa Electric Corp
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 Yokogawa Electric Corp filed Critical Yokogawa Electric Corp
Priority to JP60296064A priority Critical patent/JPS62156544A/ja
Publication of JPS62156544A publication Critical patent/JPS62156544A/ja
Publication of JPH0545137B2 publication Critical patent/JPH0545137B2/ja
Granted 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
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3554—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for determining moisture content
    • G01N21/3559—Investigating 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

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)
JP60296064A 1985-12-27 1985-12-27 紙の水分量測定装置 Granted JPS62156544A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60296064A JPS62156544A (ja) 1985-12-27 1985-12-27 紙の水分量測定装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60296064A JPS62156544A (ja) 1985-12-27 1985-12-27 紙の水分量測定装置

Publications (2)

Publication Number Publication Date
JPS62156544A JPS62156544A (ja) 1987-07-11
JPH0545137B2 true JPH0545137B2 (OSRAM) 1993-07-08

Family

ID=17828636

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60296064A Granted JPS62156544A (ja) 1985-12-27 1985-12-27 紙の水分量測定装置

Country Status (1)

Country Link
JP (1) JPS62156544A (OSRAM)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5957327B2 (ja) * 2012-07-30 2016-07-27 スタンレー電気株式会社 記録媒体判別装置
JP6916302B2 (ja) 2017-04-21 2021-08-11 ヒューレット−パッカード デベロップメント カンパニー エル．ピー．Ｈｅｗｌｅｔｔ‐Ｐａｃｋａｒｄ Ｄｅｖｅｌｏｐｍｅｎｔ Ｃｏｍｐａｎｙ， Ｌ．Ｐ． センサ較正
EP3612818B1 (en) * 2017-04-21 2022-01-12 Hewlett-Packard Development Company, L.P. Media bin sensors

Also Published As

Publication number Publication date
JPS62156544A (ja) 1987-07-11

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