DE69731539D1 - Leitfähigkeitsmessung mit einer einzigen elektrode - Google Patents

Leitfähigkeitsmessung mit einer einzigen elektrode

Info

Publication number
DE69731539D1
DE69731539D1 DE69731539T DE69731539T DE69731539D1 DE 69731539 D1 DE69731539 D1 DE 69731539D1 DE 69731539 T DE69731539 T DE 69731539T DE 69731539 T DE69731539 T DE 69731539T DE 69731539 D1 DE69731539 D1 DE 69731539D1
Authority
DE
Germany
Prior art keywords
fluid
single electrode
conductivity measurement
sample
line
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.)
Expired - Lifetime
Application number
DE69731539T
Other languages
English (en)
Other versions
DE69731539T2 (de
Inventor
E Kauffman
D Wolf
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.)
University of Dayton
Original Assignee
University of Dayton
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 University of Dayton filed Critical University of Dayton
Publication of DE69731539D1 publication Critical patent/DE69731539D1/de
Application granted granted Critical
Publication of DE69731539T2 publication Critical patent/DE69731539T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/06—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid

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)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Bipolar Transistors (AREA)
DE69731539T 1996-08-30 1997-08-27 Leitfähigkeitsmessung mit einer einzigen elektrode Expired - Lifetime DE69731539T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US707965 1996-08-30
US08/707,965 US5933016A (en) 1996-08-30 1996-08-30 Single electrode conductivity technique
PCT/US1997/015159 WO1998009158A1 (en) 1996-08-30 1997-08-27 Single electrode conductivity technique

Publications (2)

Publication Number Publication Date
DE69731539D1 true DE69731539D1 (de) 2004-12-16
DE69731539T2 DE69731539T2 (de) 2005-10-27

Family

ID=24843866

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69731539T Expired - Lifetime DE69731539T2 (de) 1996-08-30 1997-08-27 Leitfähigkeitsmessung mit einer einzigen elektrode

Country Status (6)

Country Link
US (1) US5933016A (de)
EP (1) EP0922216B1 (de)
AT (1) ATE282201T1 (de)
AU (1) AU4167597A (de)
DE (1) DE69731539T2 (de)
WO (1) WO1998009158A1 (de)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6230822B1 (en) * 1995-02-16 2001-05-15 Baker Hughes Incorporated Method and apparatus for monitoring and recording of the operating condition of a downhole drill bit during drilling operations
US6324899B1 (en) * 1998-04-02 2001-12-04 Reliance Electric Technologies, Llc Bearing-sensor integration for a lubrication analysis system
US6546785B1 (en) 1998-04-02 2003-04-15 Rockwell Automation Technologies, Inc. System and method for dynamic lubrication adjustment for a lubrication analysis system
JP4026324B2 (ja) * 2001-03-16 2007-12-26 いすゞ自動車株式会社 エンジンオイル劣化判定方法および判定装置
US7019654B2 (en) * 2001-03-29 2006-03-28 Georgia Tech Research Corporation Contact potential difference sensor to monitor oil properties
US6573734B2 (en) 2001-05-08 2003-06-03 The Board Of Trustees Of The University Of Illinois Integrated thin film liquid conductivity sensor
US6911830B2 (en) * 2002-08-22 2005-06-28 Delphi Technologies, Inc. Diesel engine lubricating oil contaminant sensor method
US7043967B2 (en) * 2002-09-30 2006-05-16 University Of Dayton Sensor device for monitoring the condition of a fluid and a method of using the same
US6861851B2 (en) * 2002-10-16 2005-03-01 The Lubrizol Corporation Method for on-line monitoring of quality and condition of non-aqueous fluids
DE10330232A1 (de) * 2003-07-04 2005-01-20 Bayer Materialscience Ag Elektrochemische Halbzelle
US20050097952A1 (en) * 2003-11-12 2005-05-12 Steph James C. Conductive sensor for fluid level sensing
US20050248358A1 (en) * 2004-05-07 2005-11-10 The Lubrizol Corporation, A Corporation Of The State Of Ohio Method for on-line monitoring of condition of non-aqueous fluids
US7355415B2 (en) * 2004-05-07 2008-04-08 The Lubrizol Corporation Method for on-line monitoring of condition of non-aqueous fluids
DE102004049127B4 (de) * 2004-10-07 2011-12-29 Viessmann Werke Gmbh & Co Kg Vorrichtung und Verfahren zur Bestimmung der Leitfähigkeit eines Kühlmediums eines Brennstoffzellensystems
US7259575B2 (en) * 2005-04-08 2007-08-21 The Lubrizol Corporation Method for on-line fuel-dilution monitoring of engine lubricant
US20090112507A1 (en) * 2007-10-29 2009-04-30 Edney Daniel B Fluid probe
US9228965B2 (en) * 2010-08-22 2016-01-05 Henny Penny Corporation Systems and methods for single-sensor oil quality measurement
SG187948A1 (en) * 2010-08-22 2013-04-30 Henny Penny Corp Electrode unit for use in a fryer and fryer comprising a said electrode unit
CA2952739C (en) 2014-06-30 2019-06-11 Pitco Frialator, Inc. System and method for sensing oil quality
US9841394B2 (en) 2015-11-16 2017-12-12 Pitco Frialator, Inc. System and method for sensing oil quality
US10436730B2 (en) 2015-12-21 2019-10-08 Pitco Frialator, Inc. System and method for sensing oil quality
US10473008B2 (en) * 2017-12-22 2019-11-12 Caterpillar Inc. Lubricant health detection system

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2027947A1 (en) * 1970-06-06 1971-12-16 Krohne Fa Ludwig Indicator for a fluid pipe line - for inductive flow measurement - and radioactive measurement of density
US3876935A (en) * 1971-12-13 1975-04-08 Renault Device for determining the presence of impurities in oil contained in the crank cases of engines or other apparatus
US4029554A (en) * 1974-05-20 1977-06-14 Naeco Associates, Inc. Oil test method
CA1064852A (en) * 1975-12-31 1979-10-23 Cominco Ltd. Method for evaluating a system for electrodeposition of metals
JPS55158554A (en) * 1979-05-28 1980-12-10 Nissan Eng Kk Apparatus for measuring concentration of oxidating and reducing substance
US4372980A (en) * 1979-08-20 1983-02-08 Alco Standard Corporation Method of operating a pressure fryer
JPS5885314A (ja) * 1981-11-17 1983-05-21 Nissan Motor Co Ltd エンジンオイルの劣化検知装置
US4686857A (en) * 1983-03-04 1987-08-18 Kabushiki Kaisha Toyota Chuo Kenkyusho Method and apparatus for evaluating the performance of dielectric substances
US4701713A (en) * 1984-12-20 1987-10-20 Combustion Engineering, Inc. Oil and fuel contamination monitoring system
US4654126A (en) * 1985-10-07 1987-03-31 International Business Machines Corporation Process for determining the plating activity of an electroless plating bath
US4635473A (en) * 1985-11-04 1987-01-13 Hochstein Peter A Oil degradation and temperature monitor
US4808930A (en) * 1986-09-03 1989-02-28 Beckman Industrial Corporation Technique of compensating for capacitive effects in conductivity measurements
US4764258A (en) * 1986-12-23 1988-08-16 University Of Dayton Method for evaluating the remaining useful life of a hydrocarbon oil
US4744870A (en) * 1986-12-23 1988-05-17 University Of Dayton Method for evaluating the remaining useful life of a lubricant
US4803466A (en) * 1987-09-11 1989-02-07 U.S. Products, Inc. Cleaning machine for carpet, upholstery and draperies
US4928065A (en) * 1989-03-31 1990-05-22 E. I. Du Pont De Nemours And Company Voltammetry in low-permitivity suspensions
AU6413190A (en) * 1989-09-22 1991-04-18 Blanchard Marketing Services Limited Sensing method and device for aggregation control
US5089780A (en) * 1989-10-04 1992-02-18 Hughes Aircraft Company Oil quality monitor sensor and system
US5071527A (en) * 1990-06-29 1991-12-10 University Of Dayton Complete oil analysis technique
US5523692A (en) * 1993-03-23 1996-06-04 Nippondenso Co., Ltd. Oil deterioration detector
SE503444C2 (sv) * 1994-09-13 1996-06-17 Nyberg Bo Erik Anordning och förfarande för avkänning och indikering av tillståndet hos ett medium i en ledning

Also Published As

Publication number Publication date
AU4167597A (en) 1998-03-19
EP0922216A1 (de) 1999-06-16
EP0922216B1 (de) 2004-11-10
WO1998009158A1 (en) 1998-03-05
DE69731539T2 (de) 2005-10-27
US5933016A (en) 1999-08-03
ATE282201T1 (de) 2004-11-15

Similar Documents

Publication Publication Date Title
ATE282201T1 (de) Leitfähigkeitsmessung mit einer einzigen elektrode
SE8701033D0 (sv) Forfarande och apparat for att analysera elektrodimpedans
DE3780633D1 (de) Korrosionsueberwachung.
BR9007206A (pt) Processo para medir,pelo menos,um constituinte de uma amostra fluida,por meio de um dispositivo de eletrodo,aparelhagem de medida para uso no processo,eletrodo sensivel e aparelhagem para conducao do processo
NO894085L (no) Instrument for maaling av fysikalske proever, f.eks. en urindraapes ledningsevne.
BG104275A (en) Method and device for express analysis of tested parameters in biological samples
RU2001119059A (ru) Способ, предусматривающий использование электрохимического шума при коррозии
SE9603569D0 (sv) Electrochemical sensor
SE9300282D0 (sv) Foerfarande och anordning foer att maeta floedet av en elektrolytisk vaetska
CZ364798A3 (cs) Způsob charakterizace měřících míst podzemní vody rozlišováním podzemní vody a stanovištní vody a zařízení k jeho provádění
DK567585D0 (da) Maalefoeler til undersoegelse af vaesker
EP0245116A3 (de) Apparatur und Methode zur Messung des Widerstands
EP0786673A3 (de) Verfahren und Vorrichtung zum Abtasten und zum Untersuchen eines Untergrundvolumens
DE69524822D1 (de) Methode und Gerät zur Messung des ohmischen abfallfreien Potentials und zur Bewertung der Beschichtungsintegrität in Anwesenheit von Streuströmen
EP0350116A3 (de) Elektrochemische Zelle zur Messung der ionischen Aktivität in einer Lösung und Verfahren zu deren Verwendung
AU586235B2 (en) Assay for salicylate and apparatus for performing same
JPH0572160A (ja) 過酸化水素濃度の測定方法及び装置
ATE329241T1 (de) Verfahren und anordnung zur feststellung von leckagen in einer absperrenden wandung
Mieluch et al. Determination of Corrosion Rate by Means of a Two-Dimensional Parallel Arrangement of Two Electrodes Operating Within a Linear Polarization Area
FR2845264B1 (fr) Dispositif et procede de mesure directe de ph et d'etat d'oxydation
JPS55107947A (en) Method of detecting flaw of subaqueous tube or coating of subaqueous tube
SE9401457L (sv) Mätning av blodgaser
GEP19960497B (en) Device for analyzing polarization properties of electrode-solution boundary
Krivian Methods of Monitoring Cathodic Protection
DK1088099T3 (da) Fremgangsmåde til bestemmelse af en biologisk aktivitet af mikroorganismer

Legal Events

Date Code Title Description
8364 No opposition during term of opposition