DE60212179D1 - Kontaktpotentialdifferenzsensor zur überwachung von öleigenschaften - Google Patents
Kontaktpotentialdifferenzsensor zur überwachung von öleigenschaftenInfo
- Publication number
- DE60212179D1 DE60212179D1 DE60212179T DE60212179T DE60212179D1 DE 60212179 D1 DE60212179 D1 DE 60212179D1 DE 60212179 T DE60212179 T DE 60212179T DE 60212179 T DE60212179 T DE 60212179T DE 60212179 D1 DE60212179 D1 DE 60212179D1
- Authority
- DE
- Germany
- Prior art keywords
- contact potential
- differential sensor
- oil properties
- monitoring oil
- potential differential
- 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
Links
- 238000012544 monitoring process Methods 0.000 title 1
- 239000012530 fluid Substances 0.000 abstract 3
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
- G01N27/22—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
- G01N27/221—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance by investigating the dielectric properties
-
- 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
- G01N27/002—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the work function voltage
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Electrochemistry (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US84034 | 1998-05-22 | ||
US27959601P | 2001-03-29 | 2001-03-29 | |
US279596P | 2001-03-29 | ||
US10/084,034 US7019654B2 (en) | 2001-03-29 | 2002-02-27 | Contact potential difference sensor to monitor oil properties |
PCT/US2002/009515 WO2002079754A2 (en) | 2001-03-29 | 2002-03-27 | Contact potential difference sensor to monitor oil properties |
Publications (2)
Publication Number | Publication Date |
---|---|
DE60212179D1 true DE60212179D1 (de) | 2006-07-20 |
DE60212179T2 DE60212179T2 (de) | 2007-06-06 |
Family
ID=26770545
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60212179T Expired - Lifetime DE60212179T2 (de) | 2001-03-29 | 2002-03-27 | Kontaktpotentialdifferenzsensor zur überwachung von öleigenschaften |
Country Status (6)
Country | Link |
---|---|
US (1) | US7019654B2 (de) |
EP (1) | EP1451551B1 (de) |
AT (1) | ATE329244T1 (de) |
AU (1) | AU2002247430A1 (de) |
DE (1) | DE60212179T2 (de) |
WO (1) | WO2002079754A2 (de) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002067481A1 (en) * | 2001-02-20 | 2002-08-29 | University Of Maryland, Baltimore County | Widely tunable and integrated optical system and method |
US7107158B2 (en) * | 2003-02-03 | 2006-09-12 | Qcept Technologies, Inc. | Inspection system and apparatus |
US7103482B2 (en) * | 2003-02-03 | 2006-09-05 | Qcept Technologies, Inc. | Inspection system and apparatus |
US7308367B2 (en) * | 2003-02-03 | 2007-12-11 | Qcept Technologies, Inc. | Wafer inspection system |
US6957154B2 (en) * | 2003-02-03 | 2005-10-18 | Qcept Technologies, Inc. | Semiconductor wafer inspection system |
US7152476B2 (en) * | 2003-07-25 | 2006-12-26 | Qcept Technologies, Inc. | Measurement of motions of rotating shafts using non-vibrating contact potential difference sensor |
US7078909B2 (en) * | 2003-12-12 | 2006-07-18 | Rosemount Analytical Inc. | Flow-through conductivity sensor |
FI118775B (fi) * | 2005-05-12 | 2008-03-14 | Metso Paper Inc | Menetelmä ja laite kenkätelan kunnonvalvonnassa |
US7659734B2 (en) * | 2007-03-07 | 2010-02-09 | Qcept Technologies, Inc. | Semiconductor inspection system and apparatus utilizing a non-vibrating contact potential difference sensor and controlled illumination |
US8007655B2 (en) * | 2007-07-24 | 2011-08-30 | Georgia Tech Research Corporation | Method and apparatus for measuring properties of weak electrolytic, organic fluids such as hydrocarbon-based fluids |
DE102007048182B3 (de) * | 2007-10-02 | 2009-02-26 | BAM Bundesanstalt für Materialforschung und -prüfung | Messanordnung und Verfahren zur Erfassung eines Ölzustandes von Motorölen im laufenden Betrieb eines Motors |
US7900526B2 (en) * | 2007-11-30 | 2011-03-08 | Qcept Technologies, Inc. | Defect classification utilizing data from a non-vibrating contact potential difference sensor |
US7752000B2 (en) * | 2008-05-02 | 2010-07-06 | Qcept Technologies, Inc. | Calibration of non-vibrating contact potential difference measurements to detect surface variations that are perpendicular to the direction of sensor motion |
US9157832B2 (en) | 2010-03-12 | 2015-10-13 | Honeywell International Inc. | Method and system for detecting incipient bearing failures |
US9205845B2 (en) * | 2012-06-07 | 2015-12-08 | Honeywell International Inc. | System and method for detecting spall initiation and defining end of life in engine components |
US9176086B2 (en) * | 2013-09-13 | 2015-11-03 | Baohua Qi | Fluid quality sensing means with reference sensor |
US9861233B2 (en) | 2014-06-30 | 2018-01-09 | 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 |
CN108508274B (zh) * | 2018-06-05 | 2020-10-09 | 中国石油天然气股份有限公司 | 电阻率测定方法、装置及*** |
US10968795B2 (en) * | 2019-04-09 | 2021-04-06 | Ford Global Technologies, Llc | Methods and systems for detection of particles in lubricant |
WO2023048618A1 (en) * | 2021-09-21 | 2023-03-30 | Zparq Ab | A method for electric leakage safety of an electric motor, and a protection system |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4129501A (en) * | 1977-09-07 | 1978-12-12 | Haynes Edward M | Method and apparatus for detecting water in oil |
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 |
US4734649A (en) * | 1986-03-10 | 1988-03-29 | Western Atlas International, Inc. | Apparatus for measuring the resistivity of a sample |
US5071527A (en) * | 1990-06-29 | 1991-12-10 | University Of Dayton | Complete oil analysis technique |
US5136247A (en) * | 1991-01-18 | 1992-08-04 | Hansen Wilford N | Apparatus and methods for calibrated work function measurements |
DE4224218C2 (de) | 1991-09-30 | 1995-11-02 | Siemens Ag | Gassensor zur Bestimmung der Konzentration von Gaskomponenten in einem Gasgemisch |
US5674401A (en) * | 1991-12-11 | 1997-10-07 | Computational Systems, Inc. | Oil monitor with magnetic field |
US5644239A (en) * | 1994-04-15 | 1997-07-01 | American Systems Technology, Inc. | Method and apparatus for sensing the condition of a fluid |
US5754055A (en) * | 1996-01-04 | 1998-05-19 | Mission Research Corporation | Lubricating fluid condition monitor |
US5933016A (en) * | 1996-08-30 | 1999-08-03 | The University Of Dayton | Single electrode conductivity technique |
US5824889A (en) * | 1997-03-06 | 1998-10-20 | Kavlico Corporation | Capacitive oil deterioration and contamination sensor |
US6278281B1 (en) * | 1998-12-23 | 2001-08-21 | Eaton Corporation | Fluid condition monitor |
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 |
US6718819B2 (en) * | 2001-09-10 | 2004-04-13 | Honeywell International Inc. | Oil quality sensor system, method and apparatus |
-
2002
- 2002-02-27 US US10/084,034 patent/US7019654B2/en not_active Expired - Lifetime
- 2002-03-27 AU AU2002247430A patent/AU2002247430A1/en not_active Abandoned
- 2002-03-27 WO PCT/US2002/009515 patent/WO2002079754A2/en active IP Right Grant
- 2002-03-27 DE DE60212179T patent/DE60212179T2/de not_active Expired - Lifetime
- 2002-03-27 AT AT02715219T patent/ATE329244T1/de not_active IP Right Cessation
- 2002-03-27 EP EP02715219A patent/EP1451551B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ATE329244T1 (de) | 2006-06-15 |
EP1451551B1 (de) | 2006-06-07 |
EP1451551A2 (de) | 2004-09-01 |
WO2002079754A3 (en) | 2004-05-27 |
US20020140564A1 (en) | 2002-10-03 |
EP1451551A4 (de) | 2004-09-01 |
WO2002079754A2 (en) | 2002-10-10 |
DE60212179T2 (de) | 2007-06-06 |
US7019654B2 (en) | 2006-03-28 |
AU2002247430A1 (en) | 2002-10-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |