DE980522T1 - Elektrische messung der ölqualität - Google Patents

Elektrische messung der ölqualität

Info

Publication number
DE980522T1
DE980522T1 DE0980522T DE98920648T DE980522T1 DE 980522 T1 DE980522 T1 DE 980522T1 DE 0980522 T DE0980522 T DE 0980522T DE 98920648 T DE98920648 T DE 98920648T DE 980522 T1 DE980522 T1 DE 980522T1
Authority
DE
Germany
Prior art keywords
oil
oil quality
electrical measurement
amplitude
output signal
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.)
Pending
Application number
DE0980522T
Other languages
English (en)
Inventor
John Collister
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.)
Lubrigard Ltd
Original Assignee
Lubrigard Ltd
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 Lubrigard Ltd filed Critical Lubrigard Ltd
Publication of DE980522T1 publication Critical patent/DE980522T1/de
Pending legal-status Critical Current

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
    • 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
    • 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
DE0980522T 1997-05-07 1998-05-07 Elektrische messung der ölqualität Pending DE980522T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9709290.2A GB9709290D0 (en) 1997-05-07 1997-05-07 Electrical measurement apparatus for oil
PCT/GB1998/001321 WO1998050790A1 (en) 1997-05-07 1998-05-07 Electrical measurement of oil quality

Publications (1)

Publication Number Publication Date
DE980522T1 true DE980522T1 (de) 2000-09-14

Family

ID=10811955

Family Applications (2)

Application Number Title Priority Date Filing Date
DE0980522T Pending DE980522T1 (de) 1997-05-07 1998-05-07 Elektrische messung der ölqualität
DE69810288T Expired - Lifetime DE69810288T2 (de) 1997-05-07 1998-05-07 Elektrische messung der ölqualität

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE69810288T Expired - Lifetime DE69810288T2 (de) 1997-05-07 1998-05-07 Elektrische messung der ölqualität

Country Status (11)

Country Link
US (1) US6459995B1 (de)
EP (1) EP0980522B1 (de)
JP (1) JP2001526781A (de)
KR (1) KR20010012375A (de)
AT (1) ATE230112T1 (de)
AU (1) AU7344198A (de)
CA (1) CA2291756A1 (de)
DE (2) DE980522T1 (de)
GB (1) GB9709290D0 (de)
WO (1) WO1998050790A1 (de)
ZA (1) ZA983853B (de)

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Also Published As

Publication number Publication date
EP0980522B1 (de) 2002-12-18
EP0980522A1 (de) 2000-02-23
CA2291756A1 (en) 1998-11-12
AU7344198A (en) 1998-11-27
WO1998050790A1 (en) 1998-11-12
ATE230112T1 (de) 2003-01-15
ZA983853B (en) 1998-12-11
US6459995B1 (en) 2002-10-01
KR20010012375A (ko) 2001-02-15
GB9709290D0 (en) 1997-06-25
DE69810288D1 (de) 2003-01-30
DE69810288T2 (de) 2003-11-06
JP2001526781A (ja) 2001-12-18

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