DE3373213D1 - Apparatus for measuring the moisture content of granular material - Google Patents

Apparatus for measuring the moisture content of granular material

Info

Publication number
DE3373213D1
DE3373213D1 DE8383401051T DE3373213T DE3373213D1 DE 3373213 D1 DE3373213 D1 DE 3373213D1 DE 8383401051 T DE8383401051 T DE 8383401051T DE 3373213 T DE3373213 T DE 3373213T DE 3373213 D1 DE3373213 D1 DE 3373213D1
Authority
DE
Germany
Prior art keywords
moisture content
probe
measuring
capacitative
granular material
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
Application number
DE8383401051T
Other languages
English (en)
Inventor
Jean-Pierre Delmulle
Bernard Torchet
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.)
Etat Francais
Original Assignee
Etat Francais
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 Etat Francais filed Critical Etat Francais
Application granted granted Critical
Publication of DE3373213D1 publication Critical patent/DE3373213D1/de
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/22—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
    • G01N27/223—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance for determining moisture content, e.g. humidity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/22—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
    • G01N27/226—Construction of measuring vessels; Electrodes therefor

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Sampling And Sample Adjustment (AREA)
DE8383401051T 1982-05-26 1983-05-26 Apparatus for measuring the moisture content of granular material Expired DE3373213D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8209168A FR2527776A1 (fr) 1982-05-26 1982-05-26 Dispositif de mesure de la teneur en eau de materiaux granulaires

Publications (1)

Publication Number Publication Date
DE3373213D1 true DE3373213D1 (en) 1987-10-01

Family

ID=9274359

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8383401051T Expired DE3373213D1 (en) 1982-05-26 1983-05-26 Apparatus for measuring the moisture content of granular material

Country Status (7)

Country Link
US (1) US4546645A (de)
EP (1) EP0095425B1 (de)
JP (1) JPS5931441A (de)
AT (1) ATE29177T1 (de)
CA (1) CA1199816A (de)
DE (1) DE3373213D1 (de)
FR (1) FR2527776A1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3702725A1 (de) * 1987-01-30 1988-08-11 Wuest Heinrich Kg Feuchtesensor zur verwendung in automatischen bewaesserungsanlagen
US4909070A (en) * 1987-10-12 1990-03-20 Smith Jeffery B Moisture sensor
US4987935A (en) * 1990-01-05 1991-01-29 Esco Corporation BI-directional tree saw
US5257532A (en) * 1992-06-29 1993-11-02 Rutgers, The State University Of New Jersey Method and apparatus for measuring moisture content as a function of thermal response
US5495177A (en) * 1993-01-07 1996-02-27 Georgia Tech Research Corporation Method and apparatus for dielectric sensing in a thermoplastic winding process
FR2703462B1 (fr) * 1993-03-30 1995-06-30 Auxiliaire Entreprises Appareil de mesure en continu de la teneur en eau d'un materiau granulaire, pulverulent ou fibreux circulant dans un dispositif de transport.
JP2873432B2 (ja) * 1995-01-19 1999-03-24 セイコープレシジョン株式会社 静電センサー
GB9509033D0 (en) * 1995-05-04 1995-06-28 Macaulay Land Use Research Ins A measurement device
US5859536A (en) * 1997-01-08 1999-01-12 Oliver Haugen Moisture sensor having low sensitivity to conductance changes
FR2826122B1 (fr) * 2001-06-13 2004-01-23 France Etat Ponts Chaussees Methode de diagnostic de cables de precontrainte externe contenus dans des gaines
IT1393561B1 (it) * 2009-03-27 2012-04-27 Zaccaria Dispositivo sensore per la misura dell'umidita' di materiali incoerenti

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2848667A (en) * 1955-05-12 1958-08-19 Shell Dev Rotary capacitance cell
US3348313A (en) * 1964-09-16 1967-10-24 Urmenyi Laszlo Device for detecting surface elevations in sheet material
DE1300316B (de) * 1966-01-03 1969-07-31 Trischberger Karl Vorrichtung zur kontinuierlichen Feuchtemessung von Schuettgut
GB1309804A (en) * 1970-06-06 1973-03-14 Winterburn Ltd Joseph Roll doctor apparatus
US3783781A (en) * 1971-09-20 1974-01-08 S Grommek Doctor blade control mechanism, particularly for use in printing presses
GB1458106A (en) * 1973-03-27 1976-12-08 Hauni Werke Koerber & Co Kg Arrangement for determining the moisture content of tobacco or similar material
GB1419235A (en) * 1974-03-08 1975-12-24 Ontario Research Foundation Moisture measuring probe
DE2522826C2 (de) * 1975-05-23 1977-06-16 Hauni Werke Koerber & Co Kg Anordnung zur messung der feuchte eines in einem kontinuierlichen strom gefoerderten gutes
US4044607A (en) * 1976-04-30 1977-08-30 Electromeasures, Inc. Grain moisture measurement probe
JPS5328432A (en) * 1976-08-20 1978-03-16 Ricoh Co Ltd Recovering method of remaining toner and device therffor
DE2712210A1 (de) * 1977-03-19 1978-09-21 Eirich Hubert Verfahren zur feuchtemessung fliessfaehigen materials und vorrichtung zur durchfuehrung des verfahrens
US4278935A (en) * 1978-07-06 1981-07-14 Sumitomo Electric Industries, Ltd. Electrodes for moisture meter

Also Published As

Publication number Publication date
FR2527776B1 (de) 1985-03-29
US4546645A (en) 1985-10-15
FR2527776A1 (fr) 1983-12-02
CA1199816A (en) 1986-01-28
EP0095425A1 (de) 1983-11-30
EP0095425B1 (de) 1987-08-26
JPS5931441A (ja) 1984-02-20
ATE29177T1 (de) 1987-09-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee