FI20065440A0 - Vesipitoisuuden mittaus - Google Patents

Vesipitoisuuden mittaus

Info

Publication number
FI20065440A0
FI20065440A0 FI20065440A FI20065440A FI20065440A0 FI 20065440 A0 FI20065440 A0 FI 20065440A0 FI 20065440 A FI20065440 A FI 20065440A FI 20065440 A FI20065440 A FI 20065440A FI 20065440 A0 FI20065440 A0 FI 20065440A0
Authority
FI
Finland
Prior art keywords
water content
content measurement
measurement
water
content
Prior art date
Application number
FI20065440A
Other languages
English (en)
Swedish (sv)
Other versions
FI20065440A (fi
FI121556B (fi
Inventor
Pekka Jakkula
Mikko Vuolteenaho
Kari Luostarinen
Taavi Hirvonen
Original Assignee
Elektrobit Microwave Oy
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 Elektrobit Microwave Oy filed Critical Elektrobit Microwave Oy
Priority to FI20065440A priority Critical patent/FI121556B/fi
Publication of FI20065440A0 publication Critical patent/FI20065440A0/fi
Priority to PCT/FI2007/050382 priority patent/WO2007147950A1/en
Priority to EP07788757A priority patent/EP2035814A4/en
Publication of FI20065440A publication Critical patent/FI20065440A/fi
Application granted granted Critical
Publication of FI121556B publication Critical patent/FI121556B/fi

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N22/00—Investigating or analysing materials by the use of microwaves or radio waves, i.e. electromagnetic waves with a wavelength of one millimetre or more
    • G01N22/04—Investigating moisture content
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F7/00—Other details of machines for making continuous webs of paper
    • D21F7/003—Indicating or regulating the moisture content of the layer
    • 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
    • G01N33/34—Paper
    • G01N33/343—Paper pulp
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; Measuring impedance or related variables

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Length-Measuring Devices Using Wave Or Particle Radiation (AREA)
FI20065440A 2006-06-22 2006-06-22 Vesipitoisuuden mittaus FI121556B (fi)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FI20065440A FI121556B (fi) 2006-06-22 2006-06-22 Vesipitoisuuden mittaus
PCT/FI2007/050382 WO2007147950A1 (en) 2006-06-22 2007-06-21 Measuring of water content
EP07788757A EP2035814A4 (en) 2006-06-22 2007-06-21 MEASUREMENT OF WATER CONTENT

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20065440 2006-06-22
FI20065440A FI121556B (fi) 2006-06-22 2006-06-22 Vesipitoisuuden mittaus

Publications (3)

Publication Number Publication Date
FI20065440A0 true FI20065440A0 (fi) 2006-06-22
FI20065440A FI20065440A (fi) 2007-12-23
FI121556B FI121556B (fi) 2010-12-31

Family

ID=36651535

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20065440A FI121556B (fi) 2006-06-22 2006-06-22 Vesipitoisuuden mittaus

Country Status (3)

Country Link
EP (1) EP2035814A4 (fi)
FI (1) FI121556B (fi)
WO (1) WO2007147950A1 (fi)

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2552954C3 (de) * 1975-11-26 1979-08-16 Bayer Ag, 5090 Leverkusen Vorrichtung zur Feuchtemessung von räumlich ausgedehnten Proben
JPS5639447A (en) * 1979-09-08 1981-04-15 Shinichi Sasaki Device for measuring water content in sheet material
JPH02272349A (ja) * 1989-04-14 1990-11-07 Nippon Tokushu Keisokki Seisakusho:Kk マイクロ波による坪量水分測定装置
GB9121678D0 (en) * 1991-10-12 1991-11-27 Unaform Ltd Microwave drainage meter
GB2294326A (en) * 1994-10-06 1996-04-24 Scapa Group Plc Moisture detection meter
DE29716639U1 (de) * 1997-09-16 1999-01-21 Tews Elektronik, 22459 Hamburg Mikrowellen-Streufeldsensor zur Feuchte- und/oder Dichtemessung
SE9803850L (sv) * 1998-11-11 2000-05-12 Kildal Antenna Consulting Ab Dielektrisk mikrovågssensor
DE50206554D1 (de) * 2002-01-29 2006-06-01 Ams Advanced Microwave Systems Mikrowellenanordnung zur Produktfeuchtemessung, mit Temperaturkompensation
EP1437588B1 (de) * 2003-01-10 2005-08-31 AMS- Advanced Microwave Systems GmbH Mikrowellen-Streufeldsensor
DE202005001756U1 (de) * 2004-02-12 2005-05-04 Trützschler GmbH & Co KG Mikrowellensensor zur Messung einer dielektrischen Eigenschaft eines Produkts
US7151380B2 (en) * 2004-08-06 2006-12-19 Voith Paper Patent Gmbh Microwave water weight sensor and process
FI119526B (fi) * 2005-05-17 2008-12-15 Senfit Oy Menetelmä ja mittalaite mitata vesipitoisuutta

Also Published As

Publication number Publication date
FI20065440A (fi) 2007-12-23
EP2035814A1 (en) 2009-03-18
FI121556B (fi) 2010-12-31
EP2035814A4 (en) 2009-07-01
WO2007147950A1 (en) 2007-12-27

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Legal Events

Date Code Title Description
PC Transfer of assignment of patent

Owner name: METSO PAPER, INC.

Free format text: METSO PAPER, INC.

Owner name: ELEKTROBIT MICROWAVE OY

Free format text: ELEKTROBIT MICROWAVE OY

PC Transfer of assignment of patent

Owner name: SENFIT OY

Free format text: SENFIT OY

Owner name: METSO PAPER, INC.

Free format text: METSO PAPER, INC.

MM Patent lapsed