NO179386C - Sensors for fluid measurement - Google Patents

Sensors for fluid measurement

Info

Publication number
NO179386C
NO179386C NO854902A NO854902A NO179386C NO 179386 C NO179386 C NO 179386C NO 854902 A NO854902 A NO 854902A NO 854902 A NO854902 A NO 854902A NO 179386 C NO179386 C NO 179386C
Authority
NO
Norway
Prior art keywords
electrodes
measuring probe
liquids
measurements
utilization
Prior art date
Application number
NO854902A
Other languages
Norwegian (no)
Other versions
NO854902L (en
NO179386B (en
Inventor
Gunter Hellwig
Horst Chmiel
Herbert Bauser
Original Assignee
Fraunhofer Ges Forschung
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 Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of NO854902L publication Critical patent/NO854902L/en
Publication of NO179386B publication Critical patent/NO179386B/en
Publication of NO179386C publication Critical patent/NO179386C/en

Links

Classifications

    • 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
    • G01N33/26—Oils; Viscous liquids; Paints; Inks
    • G01N33/28—Oils, i.e. hydrocarbon liquids
    • G01N33/2888—Lubricating oil characteristics, e.g. deterioration
    • 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
    • G01N27/227—Sensors changing capacitance upon adsorption or absorption of fluid components, e.g. electrolyte-insulator-semiconductor sensors, MOS capacitors

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Pathology (AREA)
  • Immunology (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Electrochemistry (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Eye Examination Apparatus (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Memory System Of A Hierarchy Structure (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Protection Of Generators And Motors (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Measurement Of Radiation (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

Measuring probe with two electrodes (1) and a non conducting membrane (3) arranged between the electrodes (1, 2), wherein the electrodes (1, 2) are provided with an insulating coating (4) comprised preferably of a metal oxide, mixed metal oxides, a metal nitride, an inorganic insulating material or flurocarbon and wherein the non conducting membrane (3) contains a metal oxide, mixed metal oxides or an organic or inorganic insulating material; according to the utilization, the membrane (3) and the coating (4) of the electrodes are porous (for measurements in non aqueous liquids) or non porous (for measurements in water-containing liquids). The present invention also relates to a process for measuring the properties of a liquid with the measuring probe according to the present invention as well as to the utilization of said measuring probe for the continuous or discontinuous analysis of liquids.
NO854902A 1984-04-06 1985-12-05 Sensors for fluid measurement NO179386C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843413135 DE3413135A1 (en) 1984-04-06 1984-04-06 MEASURING PROBE FOR DETECTING QUALITATIVE CHANGES OF LIQUIDS
PCT/DE1985/000107 WO1985004718A1 (en) 1984-04-06 1985-04-09 Measuring probe for the analysis of liquids

Publications (3)

Publication Number Publication Date
NO854902L NO854902L (en) 1985-12-05
NO179386B NO179386B (en) 1996-06-17
NO179386C true NO179386C (en) 1996-09-25

Family

ID=6232936

Family Applications (1)

Application Number Title Priority Date Filing Date
NO854902A NO179386C (en) 1984-04-06 1985-12-05 Sensors for fluid measurement

Country Status (9)

Country Link
EP (1) EP0182795B1 (en)
JP (1) JPH0752167B2 (en)
AT (1) ATE78924T1 (en)
AU (1) AU4157185A (en)
DE (2) DE3413135A1 (en)
DK (1) DK167037B1 (en)
FI (1) FI854815A0 (en)
NO (1) NO179386C (en)
WO (1) WO1985004718A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3643389A1 (en) * 1986-12-19 1988-07-07 Duerrwaechter E Dr Doduco METHOD FOR GENERATING AN ELECTRIC SINUS SIGNAL WITH VARIABLE FREQUENCY
DE3812687A1 (en) * 1988-04-16 1989-10-26 Duerrwaechter E Dr Doduco CAPACITIVE SENSOR FOR DETERMINING THE LEVEL OF A LIQUID IN A CONTAINER
DE3840961A1 (en) * 1988-12-05 1990-06-07 Hellige Gmbh Ion-sensitive electrode and method for compensating for the temperature dependence in such electrodes
DE3904142C2 (en) * 1989-02-11 1994-06-16 Hans Dipl Ing Gluesing Method and device for on-line control of engine oils
DE4004192A1 (en) * 1989-12-04 1991-08-22 Hauber Elektronik Gmbh Water content measuring appts. for baking fluid - measures variation in dielectric constant of fluid with compensation of temp. variations
US5488311A (en) * 1990-05-30 1996-01-30 Japan Electronic Control Systems Co., Ltd. Apparatus and method for measuring alcohol concentration of liquid blended with alcohol applicable to an automotive vehicle mounted internal combustion engine
JP2519116B2 (en) * 1990-05-30 1996-07-31 株式会社ユニシアジェックス Capacitance type alcohol concentration measuring device
DE4115664A1 (en) * 1991-05-14 1992-11-19 Werner Maier Acid detector in refrigerating compressor oil - comprises electrodes fixed in housing in place of oil drain plug
US6690569B1 (en) 1999-12-08 2004-02-10 Sensirion A/G Capacitive sensor
DE10025690A1 (en) * 2000-05-24 2001-11-29 Zahnradfabrik Friedrichshafen Oil condition sensing device
TWI475220B (en) * 2012-10-31 2015-03-01 Univ Nat Taiwan Simple oil quality detector and method for detecting oil quality
DE102014210122A1 (en) * 2014-05-27 2015-12-03 Robert Bosch Gmbh An apparatus for determining a value of a property of a fluid to be measured, a method for operating a device for determining a value of a property of a fluid to be measured, and a method for producing a device for determining a value of a property of a fluid to be measured
JP7132886B2 (en) * 2019-05-28 2022-09-07 株式会社豊田中央研究所 Corrosion Penetration Hydrogen Measuring Device and Corrosion Penetration Hydrogen Evaluation Method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3453143A (en) * 1965-10-13 1969-07-01 Singer General Precision Method of making a moisture sensitive capacitor
DE2938434C2 (en) * 1979-09-22 1981-07-09 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München Capacitive humidity sensor and method of making the sensor
FR2498329A1 (en) * 1981-01-19 1982-07-23 Commissariat Energie Atomique THIN DIELECTRIC CAPACITIVE HYGROMETER AND METHOD OF MANUFACTURING THE SAME
DE3151630C2 (en) * 1981-12-28 1986-07-03 Endress U. Hauser Gmbh U. Co, 7867 Maulburg Humidity sensor and process for its manufacture
US4571543A (en) * 1983-03-28 1986-02-18 Southwest Medical Products, Inc. Specific material detection and measuring device

Also Published As

Publication number Publication date
DE3413135A1 (en) 1985-10-17
ATE78924T1 (en) 1992-08-15
WO1985004718A1 (en) 1985-10-24
EP0182795B1 (en) 1992-07-29
JPH0752167B2 (en) 1995-06-05
FI854815A (en) 1985-12-04
FI854815A0 (en) 1985-12-04
DK567585A (en) 1985-12-06
JPS61502836A (en) 1986-12-04
DK167037B1 (en) 1993-08-16
AU4157185A (en) 1985-11-01
EP0182795A1 (en) 1986-06-04
NO854902L (en) 1985-12-05
DK567585D0 (en) 1985-12-06
NO179386B (en) 1996-06-17
DE3586417D1 (en) 1992-09-03

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