The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 16, 2017

Filed:

Jul. 11, 2013
Applicant:

Université DE Mons, Mons, BE;

Inventors:

Joel De Coninck, Mons, BE;

Sofiene Marouani, Mons, BE;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01N 33/28 (2006.01); G01N 29/02 (2006.01);
U.S. Cl.
CPC ...
G01N 33/28 (2013.01); G01N 29/02 (2013.01); G01N 29/022 (2013.01); G01N 33/2888 (2013.01); G01N 2291/0226 (2013.01); G01N 2291/0258 (2013.01); G01N 2291/02818 (2013.01);
Abstract

The quality and/or aging of an oil is monitored, notably in-situ, using a resonator sensor, for example a quartz crystal microbalance sensor (QCM). Changes of the frequency response of the sensor may be used to detect or monitor the presence of one or a combination of water, fuel, metallic debris, plastic debris and reaction products from degradation of oil components and/or oil additives (including oxidation products and acids). At least one of the major surfaces of the resonator sensor may include a component capturing surface layer provided with impression sites adapted to retain components of the oil indicative of the oil's quality, aging or contamination and both major surfaces of the sensor are preferably immersed in the oil to be monitored.


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