DE1673293A1 - Feuchtigkeitsmessgeraet - Google Patents

Feuchtigkeitsmessgeraet

Info

Publication number
DE1673293A1
DE1673293A1 DE19651673293 DE1673293A DE1673293A1 DE 1673293 A1 DE1673293 A1 DE 1673293A1 DE 19651673293 DE19651673293 DE 19651673293 DE 1673293 A DE1673293 A DE 1673293A DE 1673293 A1 DE1673293 A1 DE 1673293A1
Authority
DE
Germany
Prior art keywords
electrodes
connection
pair
normal
capacitor
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.)
Pending
Application number
DE19651673293
Other languages
German (de)
English (en)
Inventor
Perry Williaim Douglas
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.)
Weyerhaeuser Co
Original Assignee
Weyerhaeuser Co
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 Weyerhaeuser Co filed Critical Weyerhaeuser Co
Publication of DE1673293A1 publication Critical patent/DE1673293A1/de
Pending 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

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)
DE19651673293 1964-07-03 1965-03-29 Feuchtigkeitsmessgeraet Pending DE1673293A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US380189A US3339137A (en) 1964-07-03 1964-07-03 Moisture determining apparatus having adjacent electrode pairs driven outof-phase

Publications (1)

Publication Number Publication Date
DE1673293A1 true DE1673293A1 (de) 1970-03-26

Family

ID=23500249

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19651673293 Pending DE1673293A1 (de) 1964-07-03 1965-03-29 Feuchtigkeitsmessgeraet

Country Status (7)

Country Link
US (1) US3339137A (enrdf_load_stackoverflow)
JP (1) JPS4833197B1 (enrdf_load_stackoverflow)
CH (1) CH440767A (enrdf_load_stackoverflow)
DE (1) DE1673293A1 (enrdf_load_stackoverflow)
GB (1) GB1117683A (enrdf_load_stackoverflow)
NL (1) NL6505335A (enrdf_load_stackoverflow)
SE (1) SE331597B (enrdf_load_stackoverflow)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1097760A (en) * 1965-04-27 1968-01-03 Ilford Ltd Testing material for irregularities of thickness
US3444464A (en) * 1965-11-26 1969-05-13 Coulter Electronics Multiple aperture fittings for particle analyzing apparatus
US3448381A (en) * 1966-07-05 1969-06-03 William D Perry Portable non-contact moisture meter including electrodes driven 180 out of phase
US3523243A (en) * 1967-10-31 1970-08-04 Delmer W Wagner Moisture measurement device insensitive to thickness of material under test
US3593128A (en) * 1969-05-21 1971-07-13 Weyerhaeuser Co Moisture-content-measuring system employing a separate bridge circuit for each sensing electrode thereof
US4377783A (en) * 1979-10-15 1983-03-22 Wagner Delmer W Moisture detector
US4580233A (en) * 1982-09-22 1986-04-01 Weyerhaeuser Company Method of measuring moisture content of dielectric materials
NO153621C (no) * 1983-11-02 1986-04-23 Norske Stats Oljeselskap Apparat til m¨ling av gasfrasjon i en tokomponentstr¯m bes t¨ende av v|ske og gass i blanding.
US4733166A (en) * 1986-03-17 1988-03-22 Wagner Delmer W Apparatus for measuring the moisture content of moving materials
US4782282A (en) * 1986-07-09 1988-11-01 Dickey-John Corporation Capacitive-type seed sensor for a planter monitor
WO1996032634A1 (fr) * 1995-04-13 1996-10-17 Sumitomo Forestry Co., Ltd. Capteur d'humidite pour produits en bois et dispositif automatique de mesure de la teneur en humidite
NL1005956C2 (nl) * 1997-05-02 1998-11-03 Arnold Brookhuis Textieltechni Inrichting voor het meten van de vochtigheid van een materiaal, bijvoorbeeld hout.
WO2005103661A1 (en) * 2004-04-22 2005-11-03 Damsten Leif Daniel Method and apparatus for measuring the moisture content of a block of timber
IT1393473B1 (it) * 2009-03-10 2012-04-20 Microtec Srl Metodo di taratura per apparecchiature per la determinazione del grado di umidità di prodotti sulla base di misure capacitive, e dispositivo per la simulazione delle proprietà dielettriche di prodotti, quali legname, da utilizzare in tale metodo.
JP6457427B2 (ja) 2016-04-15 2019-01-23 ファナック株式会社 ワイヤ放電加工装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA673684A (en) * 1963-11-05 A. Sherman Charles Moisture detector
US1924087A (en) * 1931-09-29 1933-08-29 Atlantic Prec Instr Company Method and means for measuring and indicating properties of conductors
US2428700A (en) * 1943-09-17 1947-10-07 Wolgen Company Capacitative feed-back device for electrical testing
US3020476A (en) * 1958-05-26 1962-02-06 Honeywell Regulator Co Measuring apparatus
US3039051A (en) * 1959-08-12 1962-06-12 Zellweger Uster Ag Apparatus for gaging textile materials

Also Published As

Publication number Publication date
JPS4833197B1 (enrdf_load_stackoverflow) 1973-10-12
SE331597B (enrdf_load_stackoverflow) 1971-01-04
GB1117683A (en) 1968-06-19
NL6505335A (enrdf_load_stackoverflow) 1966-01-04
US3339137A (en) 1967-08-29
CH440767A (de) 1967-07-31

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