WO2003038394A3 - Vorrichtung und verfahren zur bestimmung der qualität eines fluids, insbesondere eines schmier- und/oder kühlmittels - Google Patents

Vorrichtung und verfahren zur bestimmung der qualität eines fluids, insbesondere eines schmier- und/oder kühlmittels Download PDF

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Publication number
WO2003038394A3
WO2003038394A3 PCT/EP2002/011517 EP0211517W WO03038394A3 WO 2003038394 A3 WO2003038394 A3 WO 2003038394A3 EP 0211517 W EP0211517 W EP 0211517W WO 03038394 A3 WO03038394 A3 WO 03038394A3
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WO
WIPO (PCT)
Prior art keywords
medium
quality
lubricant
sensor
determining
Prior art date
Application number
PCT/EP2002/011517
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English (en)
French (fr)
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WO2003038394A2 (de
Inventor
Stephanus Buettgenbach
Hans-Heinrich Harms
Original Assignee
Hydac Electronic Gmbh
Stephanus Buettgenbach
Hans-Heinrich Harms
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 Hydac Electronic Gmbh, Stephanus Buettgenbach, Hans-Heinrich Harms filed Critical Hydac Electronic Gmbh
Priority to US10/493,496 priority Critical patent/US7104117B2/en
Priority to JP2003540615A priority patent/JP2005507497A/ja
Priority to AU2002363262A priority patent/AU2002363262A1/en
Priority to KR1020047006407A priority patent/KR100658387B1/ko
Priority to EP02802294A priority patent/EP1444498A2/de
Publication of WO2003038394A2 publication Critical patent/WO2003038394A2/de
Publication of WO2003038394A3 publication Critical patent/WO2003038394A3/de

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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
    • 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
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; Measuring impedance or related variables
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
    • G01N11/10—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by moving a body within the material
    • G01N11/16—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by moving a body within the material by measuring damping effect upon oscillatory body
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02863—Electric or magnetic parameters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02881—Temperature
    • 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
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
    • G01N33/0031—General constructional details of gas analysers, e.g. portable test equipment concerning the detector comprising two or more sensors, e.g. a sensor array
    • G01N33/0032—General constructional details of gas analysers, e.g. portable test equipment concerning the detector comprising two or more sensors, e.g. a sensor array using two or more different physical functioning modes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
    • G01N9/002—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity using variation of the resonant frequency of an element vibrating in contact with the material submitted to analysis

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Pathology (AREA)
  • Immunology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Medicinal Chemistry (AREA)
  • Food Science & Technology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)

Abstract

Eine Vorrichtung (1) zur Bestimmung der Qualität eines Mediums, insbesondere eines Schmier- und/oder Kühlöls, mit mehreren Sensoren (3, 4, 5, 6, 7), die ein elektrisches Ausgangssignal in Abhängigkeit der jeweiligen sensorspezifischen Eingangsgrösse abgeben, wobei ein Sensor ein Temperatursensor (7) ist, der ein Ausgangssignal abgibt, das im wesentlichen nur eine Abhängigkeit von der Temperatur (T) des Mediums aufweist und insbesondere von der Qualität des Mediums im wesentlichen unabhängig ist, und mindestens ein weiterer Sensor (3, 4, 5, 6) ein Ausgangssignal abgibt, das eine Abhängigkeit sowohl von der Qualität des Mediums als auch von der Temperatur (T) des Mediums aufweist, und wobei die Sensoren (3, 4, 5, 6, 7) auf einem gemeinsamen und in das Medium eintauchbaren Substrat (2) angeordnet sind sowie ein zugehöriges Verfahren.
PCT/EP2002/011517 2001-10-29 2002-10-15 Vorrichtung und verfahren zur bestimmung der qualität eines fluids, insbesondere eines schmier- und/oder kühlmittels WO2003038394A2 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US10/493,496 US7104117B2 (en) 2001-10-29 2002-10-15 Device and method for determining the quality of a medium, particularly of a lubricant and/or coolant
JP2003540615A JP2005507497A (ja) 2001-10-29 2002-10-15 媒体、特に潤滑剤および／または冷却剤の品質を決定するための装置および方法
AU2002363262A AU2002363262A1 (en) 2001-10-29 2002-10-15 Device and method for determining the quality a medium, particularly of a lubricant and/or coolant
KR1020047006407A KR100658387B1 (ko) 2001-10-29 2002-10-15 매체, 특히, 윤활제 및/또는 냉각제의 품질을 결정하기위한 방법 및 장치
EP02802294A EP1444498A2 (de) 2001-10-29 2002-10-15 Vorrichtung und verfahren zur bestimmung der qualität eines fluids, insbesondere eines schmier-und/oder kühlmittels

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10152777A DE10152777A1 (de) 2001-10-29 2001-10-29 Vorrichtung und Verfahren zur Bestimmung der Qualität eines Mediums, insbesondere eines Schmier- und/oder Kühlmittels
DE10152777.2 2001-10-29

Publications (2)

Publication Number Publication Date
WO2003038394A2 WO2003038394A2 (de) 2003-05-08
WO2003038394A3 true WO2003038394A3 (de) 2004-03-25

Family

ID=7703740

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/011517 WO2003038394A2 (de) 2001-10-29 2002-10-15 Vorrichtung und verfahren zur bestimmung der qualität eines fluids, insbesondere eines schmier- und/oder kühlmittels

Country Status (8)

Country Link
US (1) US7104117B2 (de)
EP (1) EP1444498A2 (de)
JP (1) JP2005507497A (de)
KR (1) KR100658387B1 (de)
CN (1) CN1325912C (de)
AU (1) AU2002363262A1 (de)
DE (1) DE10152777A1 (de)
WO (1) WO2003038394A2 (de)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7043969B2 (en) * 2002-10-18 2006-05-16 Symyx Technologies, Inc. Machine fluid sensor and method
DE10334241A1 (de) * 2003-07-28 2005-02-24 Robert Bosch Gmbh Viskositätssensoranordnung
DE10345253B4 (de) * 2003-09-29 2006-08-17 Siemens Ag Verfahren zum Betreiben eines Zustandssensors für Flüssigkeiten
DE602004011549T2 (de) 2004-12-22 2008-05-21 C.R.F. S.C.P.A. Miniaturisierter Sensor zur Erfassung von Eigenschaften einer Flüssigkeit, insbesondere eines Schmieröls
ITTO20050169A1 (it) * 2005-03-15 2005-06-14 Gianus Spa Gruppo filtro perfezionato
DE102005043037B4 (de) 2005-09-09 2009-04-09 Siemens Ag Vorrichtung mit piezoakustischem Resonatorelement, Verfahren zu dessen Herstellung und Verfahren zur Ausgabe eines Signals in Abhängigkeit einer Resonanzfrequenz
ATE470855T1 (de) 2005-12-17 2010-06-15 Argo Hytos Gmbh Verfahren und sensorvorrichtung zur überwachung der qualität eines schmier- oder hydrauliköls
DE102006005393B4 (de) 2006-02-03 2023-05-17 Innovative Sensor Technology Ist Ag Vorrichtung zur Bestimmung und/oder Überwachung mindestens einer Prozessgröße eines Mediums
DE102006015111A1 (de) * 2006-03-31 2007-10-04 Schaeffler Kg Dreh-, Schwenk- oder Axiallager mit einem Schmierfett-Sensor
DE102006030657B4 (de) * 2006-07-03 2013-08-08 Continental Automotive Gmbh Fluidsensor zur Messung charakteristischer Eigenschaften eines Fluids
US8149004B2 (en) 2007-01-19 2012-04-03 Honeywell International Inc. Corrosion sensor for monitoring and controlling lubricant acidity
JP5055035B2 (ja) 2007-06-19 2012-10-24 三菱重工業株式会社 オイル劣化検出装置
DE102008029793A1 (de) 2008-03-19 2009-10-01 Epcos Ag Messvorrichtung
WO2011065340A1 (ja) * 2009-11-25 2011-06-03 出光興産株式会社 潤滑油の劣化・変質度測定方法及びその測定装置
GB2476317B (en) * 2009-12-21 2014-02-12 Wema System As Quality sensor apparatus
ES2390551B1 (es) * 2010-07-20 2013-10-02 Francisco Arrebola Rodriguez Dispositivo de medida de la concentracion de anticongelante
DE102011015942B3 (de) * 2011-04-02 2012-02-16 Karlsruher Institut für Technologie Drucksonde zum Nachweis von Clathraten und deren Verwendung
DE102011105813A1 (de) 2011-05-05 2012-11-08 Hydac Technology Gmbh Sensorvorrichtung zum Detektieren von strömungsfähigen Medien, eine Druckeinrichtung und ein Messverfahren
DE102011100532A1 (de) 2011-05-05 2012-11-08 Hydac Technology Gmbh Medientrennvorrichtung, insbesondere Hydrospeicher einschließlich zugehöriger Messeinrichtung und Messverfahren
WO2014002650A1 (ja) * 2012-06-25 2014-01-03 セイコーインスツル株式会社 圧電ユニット、圧電装置、圧電判定装置及び状態判定方法
DE102013009370A1 (de) 2013-06-05 2014-12-11 Hochschule Karlsruhe Vorrichtung zur Messung von Fluideigenschaften und deren Verwendung
CN105319149A (zh) * 2014-07-29 2016-02-10 盛美半导体设备（上海）有限公司 抛光液粘度监测方法及监测装置
JP6468784B2 (ja) * 2014-10-07 2019-02-13 愛三工業株式会社 燃料性状センサ
DE102014222469A1 (de) * 2014-11-04 2016-05-04 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum Plausibilisieren eines Sensorsignals
DE102014016712B4 (de) * 2014-11-13 2022-12-01 Dräger Safety AG & Co. KGaA Transportables Chipmesssystem und Verfahren zum Betrieb eines transportablen Chipmesssystems
DE102015016887A1 (de) * 2015-12-22 2017-06-22 Dürr Somac GmbH Vorrichtung zur Messung des Wassergehaltes in Bremsflüssigkeiten
JP7086592B2 (ja) 2016-12-21 2022-06-20 スカイワークス ソリューションズ，インコーポレイテッド 過温度保護を備えた無線周波数システム、弾性表面波フィルタ及びパッケージ状モジュール
FR3070762B1 (fr) * 2017-09-04 2023-04-14 Plastic Omnium Advanced Innovation & Res Capteur de qualite.
US11187636B1 (en) * 2018-01-26 2021-11-30 Kelvin Innovations LLC Dielectrostriction measurement with electrical excitation frequency sweep method and rheo-dielectric coefficient for process monitoring, quality examination, and material characterization
CN108693336B (zh) * 2018-06-06 2021-09-07 北京雅士科莱恩石油化工有限公司 一种润滑油油膜水平测定仪及其测定方法
US11035841B2 (en) * 2019-07-09 2021-06-15 Saudi Arabian Oil Company Monitoring the performance of protective fluids in downhole tools
US11359458B2 (en) 2020-06-23 2022-06-14 Saudi Arabian Oil Company Monitoring oil health in subsurface safety valves
CN114543896B (zh) * 2022-03-23 2024-05-10 成都高斯电子技术有限公司 基于温漂电参数的容性设备介质含水量与老化评估方法

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4131969A1 (de) * 1991-09-25 1993-04-08 Fraunhofer Ges Forschung Schmieroelueberwachungseinrichtung
DE4400838A1 (de) * 1994-01-14 1995-07-20 Smt & Hybrid Gmbh Gassensorchip und Verfahren zu dessen Herstellung
DE19644290A1 (de) * 1996-10-24 1998-05-07 Fraunhofer Ges Forschung Sensorelement zur gleichzeitigen Messung von zwei verschiedenen Eigenschaften einer chemisch sensitiven Substanz
DE19706486A1 (de) * 1997-02-19 1998-08-20 Fraunhofer Ges Forschung Vorrichtung und Verfahren zum Bestimmen des Alterungszustands flüssiger Medien
DE19710358A1 (de) * 1997-03-13 1998-09-24 Bosch Gmbh Robert Mikrostrukturierter Sensor
WO2000015118A1 (de) * 1998-09-11 2000-03-23 Aesculap Ag & Co. Kg Flächiges rückhalteelement für körperteile
DE19850799A1 (de) * 1998-11-04 2000-05-11 Bosch Gmbh Robert Sensoranordnung zur Ermittlung physikalischer Eigenschaften von Flüssigkeiten
WO2001055718A1 (de) * 2000-01-24 2001-08-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V. Vorrichtung und verfahren zur erfassung von durch schmiermittel bedingten belagbildungen auf sensoroberflächen
DE10108576A1 (de) * 2000-03-21 2001-09-27 Caterpillar Inc Verfahren und Vorrichtung zur Temperaturkompensation einer piezoelektrischen Vorrichtung

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9706990D0 (en) * 1997-04-05 1997-05-21 Univ Heriot Watt Dew point and bubble point measurement

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4131969A1 (de) * 1991-09-25 1993-04-08 Fraunhofer Ges Forschung Schmieroelueberwachungseinrichtung
DE4400838A1 (de) * 1994-01-14 1995-07-20 Smt & Hybrid Gmbh Gassensorchip und Verfahren zu dessen Herstellung
DE19644290A1 (de) * 1996-10-24 1998-05-07 Fraunhofer Ges Forschung Sensorelement zur gleichzeitigen Messung von zwei verschiedenen Eigenschaften einer chemisch sensitiven Substanz
DE19706486A1 (de) * 1997-02-19 1998-08-20 Fraunhofer Ges Forschung Vorrichtung und Verfahren zum Bestimmen des Alterungszustands flüssiger Medien
DE19710358A1 (de) * 1997-03-13 1998-09-24 Bosch Gmbh Robert Mikrostrukturierter Sensor
WO2000015118A1 (de) * 1998-09-11 2000-03-23 Aesculap Ag & Co. Kg Flächiges rückhalteelement für körperteile
DE19850799A1 (de) * 1998-11-04 2000-05-11 Bosch Gmbh Robert Sensoranordnung zur Ermittlung physikalischer Eigenschaften von Flüssigkeiten
WO2001055718A1 (de) * 2000-01-24 2001-08-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V. Vorrichtung und verfahren zur erfassung von durch schmiermittel bedingten belagbildungen auf sensoroberflächen
DE10108576A1 (de) * 2000-03-21 2001-09-27 Caterpillar Inc Verfahren und Vorrichtung zur Temperaturkompensation einer piezoelektrischen Vorrichtung

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
HAMMOND J M ET AL: "An acoustic automotive engine oil quality sensor", FREQUENCY CONTROL SYMPOSIUM, 1997., PROCEEDINGS OF THE 1997 IEEE INTERNATIONAL ORLANDO, FL, USA 28-30 MAY 1997, NEW YORK, NY, USA,IEEE, US, 28 May 1997 (1997-05-28), pages 72 - 80, XP010257416, ISBN: 0-7803-3728-X *
UTTENTHALER E ET AL: "Ultrasensitive quartz crystal microbalance sensors for detection of M13-Phages in liquids", BIOSENSORS & BIOELECTRONICS, DEC. 2001, ELSEVIER, UK, vol. 16, no. 9-12, pages 735 - 743, XP002245589, ISSN: 0956-5663 *

Also Published As

Publication number Publication date
KR100658387B1 (ko) 2006-12-19
CN1578909A (zh) 2005-02-09
KR20040062596A (ko) 2004-07-07
CN1325912C (zh) 2007-07-11
AU2002363262A1 (en) 2003-05-12
US7104117B2 (en) 2006-09-12
EP1444498A2 (de) 2004-08-11
JP2005507497A (ja) 2005-03-17
DE10152777A1 (de) 2003-05-15
WO2003038394A2 (de) 2003-05-08
US20040250606A1 (en) 2004-12-16

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