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1. (WO2010078555) CAPACITIVE AND RESISTIVE CONDUCTIVITY ENGINE OIL ANALYZER
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2010/078555 International Application No.: PCT/US2010/020050
Publication Date: 08.07.2010 International Filing Date: 04.01.2010
IPC:
G01N 27/02 (2006.01) ,G01N 33/30 (2006.01) ,G01N 27/06 (2006.01) ,G01N 27/22 (2006.01)
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
27
Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means
02
by investigating impedance
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
33
Investigating or analysing materials by specific methods not covered by groups G01N1/-G01N31/131
26
Oils; viscous liquids; paints; inks
28
Oils
30
for lubricating properties
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
27
Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means
02
by investigating impedance
04
by investigating resistance
06
of a liquid
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
27
Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means
02
by investigating impedance
22
by investigating capacitance
Applicants:
WAVEON TECHNOLOGIES, INC. [US/US]; 807 Prospect Ave Osceola, Wisconsin 54020, US (AllExceptUS)
MILLER, Charles, S. [NZ/US]; US (UsOnly)
Inventors:
MILLER, Charles, S.; US
Agent:
KINGHORN, Curtis, D.; Sirius Strategic, LLC 6769 W. Shadow Lake Dr. Lino Lakes, Minnesota 55014, US
Priority Data:
61/203,99002.01.2009US
61/277,06221.09.2009US
Title (EN) CAPACITIVE AND RESISTIVE CONDUCTIVITY ENGINE OIL ANALYZER
(FR) ANALYSEUR D'HUILE DE MOTEUR À CONDUCTIVITÉ CAPACITIVE ET RÉSISTIVE
Abstract:
(EN) A device is disclosed for detecting the degradation of or the presence of contaminants in materials of interest, particularly engine oil. The invention includes a sensor for sensing the dielectric value (or permittivity) and resistive conductivity of the material under test by applying a changing electric field to the material and sensing the resulting signal having a time signal proportional to the dielectric and resistive value of the fluid. This invention also includes a signal processing circuit, responsive to the sensing signal, for converting the signal received to a steady state analog voltage which voltage can be compared to known values representing the state of the material being analyzed.
(FR) L'invention concerne un dispositif de détection de la dégradation de substances d'intérêt ou de la présence de contaminants dans celles-ci, en particulier en ce qui concerne une huile de moteur. L'invention comprend un capteur destiné à détecter la valeur diélectrique (ou la permittivité) et la conductivité résistive de la substance à l'essai par l'application d'un champ électrique fluctuant sur la substance et à détecter le signal résultant possédant un signal temporel proportionnel à la valeur diélectrique et résistive du fluide. L'invention concerne également un circuit de traitement de signaux, sensible au signal de détection, afin de convertir le signal reçu en une tension analogique à l'état stationnaire, laquelle tension peut être comparée à des valeurs connues représentant l'état de la substance en cours d'analyse.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)