JPS5754848A - Moisture detecting element - Google Patents

Moisture detecting element

Info

Publication number
JPS5754848A
JPS5754848A JP55130291A JP13029180A JPS5754848A JP S5754848 A JPS5754848 A JP S5754848A JP 55130291 A JP55130291 A JP 55130291A JP 13029180 A JP13029180 A JP 13029180A JP S5754848 A JPS5754848 A JP S5754848A
Authority
JP
Japan
Prior art keywords
insulation film
conductive material
detecting element
electrode
porous
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.)
Granted
Application number
JP55130291A
Other languages
Japanese (ja)
Other versions
JPH0115815B2 (en
Inventor
Katsuhisa Enjoji
Kazuo Katsuki
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.)
Nippon Sheet Glass Co Ltd
Original Assignee
Nippon Sheet Glass Co Ltd
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 Nippon Sheet Glass Co Ltd filed Critical Nippon Sheet Glass Co Ltd
Priority to JP55130291A priority Critical patent/JPS5754848A/en
Publication of JPS5754848A publication Critical patent/JPS5754848A/en
Publication of JPH0115815B2 publication Critical patent/JPH0115815B2/ja
Granted 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
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/403—Cells and electrode assemblies
    • G01N27/406—Cells and probes with solid electrolytes
    • G01N27/407—Cells and probes with solid electrolytes for investigating or analysing gases
    • G01N27/4075—Composition or fabrication of the electrodes and coatings thereon, e.g. catalysts
    • 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
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
    • G01N27/121—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid for determining moisture content, e.g. humidity, of the fluid

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Electrochemistry (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Molecular Biology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Non-Adjustable Resistors (AREA)

Abstract

PURPOSE:To detect the time when water is generated by differentiating the impedance between two electrodes from the drying time with a porous insulation film so made of a fine powder of conductive material as to be mixed in dispersion between the electrodes. CONSTITUTION:A porous electrode 2 mainly composed of a metal oxide Bi2Ru2O7 of is formed on the top surface of an alumina substrate 6. A paste comprising a powder mixture of 80 part by volume of glass powder with a diameter of 5mum or less and 20 part by volume of metal oxide Bi2RU2O7 of pyrochroite type crystal with a diameter of 5mum or less is printed by a screen printing and sintered on the electrode 2 to form a porous insulation film 5 in which a fine powder of conductive material is dispersed in an insulating material. Another electrode 4 is provided on the insulation film 5 to make a moisture detecting element. The moisture detecting element thus formed is limited in secular change because it utilizes changes in the dielectric constant due to impregnated moisture of the porous insulation film and electric conduction between fine powders of conductive material through water attached thereto.
JP55130291A 1980-09-19 1980-09-19 Moisture detecting element Granted JPS5754848A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55130291A JPS5754848A (en) 1980-09-19 1980-09-19 Moisture detecting element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55130291A JPS5754848A (en) 1980-09-19 1980-09-19 Moisture detecting element

Publications (2)

Publication Number Publication Date
JPS5754848A true JPS5754848A (en) 1982-04-01
JPH0115815B2 JPH0115815B2 (en) 1989-03-20

Family

ID=15030796

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55130291A Granted JPS5754848A (en) 1980-09-19 1980-09-19 Moisture detecting element

Country Status (1)

Country Link
JP (1) JPS5754848A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2694400A1 (en) * 1992-07-31 1994-02-04 Inst Nat Polytech Grenoble Electrode material for a potentiometric oxygen sensor operating at a temperature below 250degree C, and method for obtaining it.
KR100680237B1 (en) * 2004-05-03 2007-02-08 이엠씨마이크로시스템 주식회사 Capacitive humidity sensor, its fabrication method and its connection method
WO2009135270A1 (en) * 2008-05-09 2009-11-12 Commonwealth Scientific And Industrial Reserach Organisation A composite material for use in a sensing electrode for measuring water quality

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5595857A (en) * 1979-01-16 1980-07-21 Nippon Sheet Glass Co Ltd Moisture detection element

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5595857A (en) * 1979-01-16 1980-07-21 Nippon Sheet Glass Co Ltd Moisture detection element

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2694400A1 (en) * 1992-07-31 1994-02-04 Inst Nat Polytech Grenoble Electrode material for a potentiometric oxygen sensor operating at a temperature below 250degree C, and method for obtaining it.
KR100680237B1 (en) * 2004-05-03 2007-02-08 이엠씨마이크로시스템 주식회사 Capacitive humidity sensor, its fabrication method and its connection method
WO2009135270A1 (en) * 2008-05-09 2009-11-12 Commonwealth Scientific And Industrial Reserach Organisation A composite material for use in a sensing electrode for measuring water quality

Also Published As

Publication number Publication date
JPH0115815B2 (en) 1989-03-20

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