FI120604B - Förfarande för att förbättra noggrannheten hos fuktmätning baserad på elektriska egenskaper eller elektromagnetisk vågrörelse - Google Patents

Förfarande för att förbättra noggrannheten hos fuktmätning baserad på elektriska egenskaper eller elektromagnetisk vågrörelse Download PDF

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Publication number
FI120604B
FI120604B FI20012106A FI20012106A FI120604B FI 120604 B FI120604 B FI 120604B FI 20012106 A FI20012106 A FI 20012106A FI 20012106 A FI20012106 A FI 20012106A FI 120604 B FI120604 B FI 120604B
Authority
FI
Finland
Prior art keywords
measurement
moisture
electrical properties
accuracy
pulp
Prior art date
Application number
FI20012106A
Other languages
English (en)
Finnish (fi)
Other versions
FI20012106A0 (sv
FI20012106A (sv
Inventor
Erik Nordenswan
Olavi Kuosmanen
Mikko Henriksson
Aulis Kaeppi
Pekko Ristola
Original Assignee
Consolis Technology Oy Ab
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 Consolis Technology Oy Ab filed Critical Consolis Technology Oy Ab
Priority to FI20012106A priority Critical patent/FI120604B/sv
Publication of FI20012106A0 publication Critical patent/FI20012106A0/sv
Priority to DE60237953T priority patent/DE60237953D1/de
Priority to DK02396158.4T priority patent/DK1308725T3/da
Priority to AT02396158T priority patent/ATE484743T1/de
Priority to EP02396158A priority patent/EP1308725B1/en
Publication of FI20012106A publication Critical patent/FI20012106A/sv
Application granted granted Critical
Publication of FI120604B publication Critical patent/FI120604B/sv

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28CPREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C7/00Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
    • B28C7/02Controlling the operation of the mixing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28CPREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C7/00Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
    • B28C7/02Controlling the operation of the mixing
    • B28C7/022Controlling the operation of the mixing by measuring the consistency or composition of the mixture, e.g. with supply of a missing component
    • B28C7/024Controlling the operation of the mixing by measuring the consistency or composition of the mixture, e.g. with supply of a missing component by measuring properties of the mixture, e.g. moisture, electrical resistivity, density
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N22/00Investigating or analysing materials by the use of microwaves or radio waves, i.e. electromagnetic waves with a wavelength of one millimetre or more
    • G01N22/04Investigating moisture content
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/22Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/38Concrete; Lime; Mortar; Gypsum; Bricks; Ceramics; Glass
    • G01N33/383Concrete or cement
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N9/00Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
    • G01N9/02Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring weight of a known volume
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N9/00Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
    • G01N9/36Analysing materials by measuring the density or specific gravity, e.g. determining quantity of moisture
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N9/00Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
    • G01N9/24Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by observing the transmission of wave or particle radiation through the material

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Immunology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Electromagnetism (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Sampling And Sample Adjustment (AREA)

Claims (6)

1. Förfarande för förbättring av precisionen av fuktighetsmätning, son grundar sig pä elektriska egenskaper eller elektromagnetisk vägrörelse av granulärt material, 5 kännetecknat därav, att under elektromagnetisk mätning mäts ythöjden av en massa i blandaren under blandning och kompenseras det av variation i skrymdensitet beroende felet pä basen av ett pä bulking-företeelse baserat känt beroende, och att precisionen av mätning förbättras utöver mätningen av ythöjden av massan genom användning av andra vid blandningstiden kända eller mätta pä 10 dielektrisitetförändringen inverkande korrigeringsfaktorer.
2. Förfarande enligt patentkravet 1, kännetecknat därav, att ythöjden av massan i blandaren mäts med en ultraljuds-, laser-, eller annan motsvarande ythöjdmätare. 15
3. Förfarande enligt patentkravet 1 eller 2, kännetecknat därav, att den vid fuktighetsmätningen använda elektromagnetiska vägrörelsen är mikrovägrörelse.
4. Förfarande enligt patentkravet 1 eller 2, kännetecknat därav, att det vid fuktighetsmätningen använda pä elektriska egenskaper baserade förfarandet 20 grundar sig pä förändring av kapacitans.
5. Förfarande enligt patentkravet 1 eller 2, kännetecknat därav, att det vid fuktighetsmätningen använda pä elektriska egenskaper baserade förfarandet grundar sig pä förändring av ledningsförmägan. 25
6. Förfarande enligt nägot av de föregäende patentkraven, kännetecknat därav, att massan, vars fuktighet mäts är betongmassa.
FI20012106A 2001-10-31 2001-10-31 Förfarande för att förbättra noggrannheten hos fuktmätning baserad på elektriska egenskaper eller elektromagnetisk vågrörelse FI120604B (sv)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FI20012106A FI120604B (sv) 2001-10-31 2001-10-31 Förfarande för att förbättra noggrannheten hos fuktmätning baserad på elektriska egenskaper eller elektromagnetisk vågrörelse
DE60237953T DE60237953D1 (de) 2001-10-31 2002-10-28 Verfahren zur Messung der Feuchtigkeit in Zement mit Hilfe eines elektromagnetischen Feldes
DK02396158.4T DK1308725T3 (da) 2001-10-31 2002-10-28 Fremgangsmåde til fugtmåling i beton ved hjælp af elektromagnetiske felter
AT02396158T ATE484743T1 (de) 2001-10-31 2002-10-28 Verfahren zur messung der feuchtigkeit in zement mit hilfe eines elektromagnetischen feldes
EP02396158A EP1308725B1 (en) 2001-10-31 2002-10-28 Method for moisture measurement in concrete with the help of electromagnetic fields

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20012106A FI120604B (sv) 2001-10-31 2001-10-31 Förfarande för att förbättra noggrannheten hos fuktmätning baserad på elektriska egenskaper eller elektromagnetisk vågrörelse
FI20012106 2001-10-31

Publications (3)

Publication Number Publication Date
FI20012106A0 FI20012106A0 (sv) 2001-10-31
FI20012106A FI20012106A (sv) 2003-05-01
FI120604B true FI120604B (sv) 2009-12-15

Family

ID=8562157

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20012106A FI120604B (sv) 2001-10-31 2001-10-31 Förfarande för att förbättra noggrannheten hos fuktmätning baserad på elektriska egenskaper eller elektromagnetisk vågrörelse

Country Status (5)

Country Link
EP (1) EP1308725B1 (sv)
AT (1) ATE484743T1 (sv)
DE (1) DE60237953D1 (sv)
DK (1) DK1308725T3 (sv)
FI (1) FI120604B (sv)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005036056A1 (de) * 2005-08-01 2007-02-08 Gerhard Wohlfarth Vorrichtung und Verfahren zur Einsparung von Wasser und dadurch Zement bei der Herstellung von Beton
WO2014108798A2 (en) 2013-01-11 2014-07-17 Katzeff-Berman, Dully Concrete mixture measurement sensor, system and method
DE202013102514U1 (de) * 2013-06-11 2013-06-17 Vega Grieshaber Kg Füllstandmessgerät zur Feuchtigkeitsbestimmung
CN109732782A (zh) * 2019-03-06 2019-05-10 武汉理工大学 一种混凝土含水率在线监控系统及监控方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4186952A (en) * 1978-07-27 1980-02-05 Keystone Consolidated Industries, Inc. Turn button latch
US5025954A (en) 1990-02-01 1991-06-25 Hamburger Color Company Multi-components measuring and dispensing system
JP3593377B2 (ja) * 1995-01-31 2004-11-24 全国生コンクリート工業組合連合会 コンクリート用細骨材の含水率測定方法およびその含水率測定に用いる装置
JPH11211475A (ja) * 1998-01-23 1999-08-06 Kumagai Gumi Co Ltd 水平レベル保持装置
GB2359138B (en) 2000-02-12 2004-06-16 Stuart Ian Jackman Method and apparatus for monitoring adsorbed water
FI20002280A (sv) * 2000-10-16 2002-04-17 Addtek Res & Dev Oy Ab Förfarande och anordning för bestämning av fukthalt och konsistens hos ett granulärt material

Also Published As

Publication number Publication date
FI20012106A0 (sv) 2001-10-31
EP1308725B1 (en) 2010-10-13
FI20012106A (sv) 2003-05-01
DE60237953D1 (de) 2010-11-25
EP1308725A1 (en) 2003-05-07
DK1308725T3 (da) 2011-01-10
ATE484743T1 (de) 2010-10-15

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