DK567585D0 - MEASUREMENT FAULTS FOR THE EXAMINATION OF LIQUIDS - Google Patents

MEASUREMENT FAULTS FOR THE EXAMINATION OF LIQUIDS

Info

Publication number
DK567585D0
DK567585D0 DK567585A DK567585A DK567585D0 DK 567585 D0 DK567585 D0 DK 567585D0 DK 567585 A DK567585 A DK 567585A DK 567585 A DK567585 A DK 567585A DK 567585 D0 DK567585 D0 DK 567585D0
Authority
DK
Denmark
Prior art keywords
liquids
electrodes
measuring probe
examination
measurements
Prior art date
Application number
DK567585A
Other languages
Danish (da)
Other versions
DK567585A (en
DK167037B1 (en
Inventor
Guenther Hellwig
Herbert Bauser
Horst Chmiel
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 DK567585A publication Critical patent/DK567585A/en
Publication of DK567585D0 publication Critical patent/DK567585D0/en
Application granted granted Critical
Publication of DK167037B1 publication Critical patent/DK167037B1/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.
DK567585A 1984-04-06 1985-12-06 Measuring probe for the analysis of liquids DK167037B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3413135 1984-04-06
DE19843413135 DE3413135A1 (en) 1984-04-06 1984-04-06 MEASURING PROBE FOR DETECTING QUALITATIVE CHANGES OF LIQUIDS
DE8500107 1985-04-09
PCT/DE1985/000107 WO1985004718A1 (en) 1984-04-06 1985-04-09 Measuring probe for the analysis of liquids

Publications (3)

Publication Number Publication Date
DK567585A DK567585A (en) 1985-12-06
DK567585D0 true DK567585D0 (en) 1985-12-06
DK167037B1 DK167037B1 (en) 1993-08-16

Family

ID=6232936

Family Applications (1)

Application Number Title Priority Date Filing Date
DK567585A DK167037B1 (en) 1984-04-06 1985-12-06 Measuring probe for the analysis of liquids

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
NO179386C (en) 1996-09-25
NO179386B (en) 1996-06-17
DE3586417D1 (en) 1992-09-03

Similar Documents

Publication Publication Date Title
DK567585D0 (en) MEASUREMENT FAULTS FOR THE EXAMINATION OF LIQUIDS
AU2967289A (en) Devices for use in chemical test procedures
DK160781C (en) DEVICE FOR DETECTING A COMPONENT IN A LIQUID TEST BY MEASURING CONDITIONS OF CONDUCTIVITY.
DE3852036T2 (en) RECEPTOR MEMBRANES.
AU531961B2 (en) Measuring ph
ATE282201T1 (en) CONDUCTIVITY MEASUREMENT WITH A SINGLE ELECTRODE
DK1368488T3 (en) Sensor device, device and method for aomperometric and / or potentiometric pharmacological testing of active sites and / or active substances
BR7907225A (en) COMPOSITION, TEST DEVICE AND PROCESS TO DETERMINE THE IONIC STRENGTH OR RELATIVE DENSITY OF A LIQUID SAMPLE, AND PROCESS TO PREPARE THAT DEVICE
DE3484746D1 (en) ARRANGEMENT FOR MEASURING THE CONCENTRATION OF A SUBSTANCE.
ATE38290T1 (en) TEST AGENT FOR IONS CONTAINING A POROUS CARRIER MATRIX.
GR3018568T3 (en) Process for separating and measuring trace components
DE3787321D1 (en) Electrochemical sensor for measuring corrosion in a metallic device.
JPS5217074A (en) Measuring method of gas concentration by non-dispersion type infraed r ay analysis
SU1492261A1 (en) Device for measuring concentration of oxygen
NO861881L (en) TEST CELL FOR TESTING PARTS OF STEEL SURFACES.
FR2330002A1 (en) Ion concentration measurement in liquid - is performed by comparison with reference liquid of variable ion concentration to achieve wide range
JPS57184969A (en) Measuring method for immunity of homo-pth
Krivian Determination by Extrapolation of the Electrode Potential of Underground Steel Structures
JPS5425775A (en) Easy measuring method of dielectric characteristics
JPS5379598A (en) Electrolyte measuring method in liquid sample by ion electrode
GB675157A (en) Improvements in and relating to measuring or observing changes in the electrical conductivity of liquids
JDM et al. Radio frequency measurement of the dielectric constant of conducting liquids with tan δ up to 500
JPS5666748A (en) Measuring method of biological activity and its device
JPS545493A (en) Measuring apparatus of total carbon quantity in liquid specimen
Wood et al. Analytical quality at the Environment Agency

Legal Events

Date Code Title Description
B1 Patent granted (law 1993)
PBP Patent lapsed