NL7802100A - Inrichting ter bepaling van het vochtgehalte van een materiaal of stof. - Google Patents

Inrichting ter bepaling van het vochtgehalte van een materiaal of stof.

Info

Publication number
NL7802100A
NL7802100A NL7802100A NL7802100A NL7802100A NL 7802100 A NL7802100 A NL 7802100A NL 7802100 A NL7802100 A NL 7802100A NL 7802100 A NL7802100 A NL 7802100A NL 7802100 A NL7802100 A NL 7802100A
Authority
NL
Netherlands
Prior art keywords
circuit
moisture content
substance
sensor
pole
Prior art date
Application number
NL7802100A
Other languages
English (en)
Other versions
NL173099C (nl
NL173099B (nl
Original Assignee
Stichting Tech En Fysische Die
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 Stichting Tech En Fysische Die filed Critical Stichting Tech En Fysische Die
Priority to NL7802100A priority Critical patent/NL173099C/nl
Publication of NL7802100A publication Critical patent/NL7802100A/nl
Publication of NL173099B publication Critical patent/NL173099B/nl
Application granted granted Critical
Publication of NL173099C publication Critical patent/NL173099C/nl

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
    • G01N27/225—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 by using hygroscopic materials
    • 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
    • G01N33/24—Earth materials
    • G01N33/246—Earth materials for water content

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Remote Sensing (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
NL7802100A 1978-02-24 1978-02-24 Inrichting ter bepaling van het vochtgehalte van een materiaal of stof, in het bijzonder de bodem. NL173099C (nl)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7802100A NL173099C (nl) 1978-02-24 1978-02-24 Inrichting ter bepaling van het vochtgehalte van een materiaal of stof, in het bijzonder de bodem.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7802100A NL173099C (nl) 1978-02-24 1978-02-24 Inrichting ter bepaling van het vochtgehalte van een materiaal of stof, in het bijzonder de bodem.

Publications (3)

Publication Number Publication Date
NL7802100A true NL7802100A (nl) 1979-08-28
NL173099B NL173099B (nl) 1983-07-01
NL173099C NL173099C (nl) 1983-12-01

Family

ID=19830393

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7802100A NL173099C (nl) 1978-02-24 1978-02-24 Inrichting ter bepaling van het vochtgehalte van een materiaal of stof, in het bijzonder de bodem.

Country Status (1)

Country Link
NL (1) NL173099C (nl)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0392639A2 (en) * 1989-04-13 1990-10-17 Rockwool/ Grodan B.V. Method and device for measuring the moisture content of a substrate for growing
CN101520426B (zh) * 2008-02-28 2012-05-09 河南农业大学 基于矢量合成的土壤水分和电导率的测量方法及其装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8503554A (nl) * 1985-12-23 1987-07-16 Stichting Tech En Fysische Die Werkwijze en inrichting voor het meten van de vochtspanning van een substraat.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0392639A2 (en) * 1989-04-13 1990-10-17 Rockwool/ Grodan B.V. Method and device for measuring the moisture content of a substrate for growing
EP0392639A3 (en) * 1989-04-13 1991-04-03 Rockwool/ Grodan B.V. Method and device for measuring the moisture content of a substrate for growing
CN101520426B (zh) * 2008-02-28 2012-05-09 河南农业大学 基于矢量合成的土壤水分和电导率的测量方法及其装置

Also Published As

Publication number Publication date
NL173099C (nl) 1983-12-01
NL173099B (nl) 1983-07-01

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Legal Events

Date Code Title Description
A1B A search report has been drawn up
BC A request for examination has been filed
SNR Assignments of patents or rights arising from examined patent applications

Owner name: INSTITUUT VOOR MILIEU- EN AGRITECHNIEK

V4 Lapsed because of reaching the maxim lifetime of a patent

Free format text: 980224