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.
Patent No.:
Date of Patent:
Jun. 23, 2015
Filed:
Sep. 07, 2010
Eneko Arrondo Gorritxategi, Guipúzcoa, ES;
Aitor Arnaiz Irigaray, Guipúzcoa, ES;
Ana Aranzabe Garcia, Guipúzcoa, ES;
Jesús MA Terradillos Azqueta, Guipúzcoa, ES;
Eneko Arrondo Gorritxategi, Guipúzcoa, ES;
Aitor Arnaiz Irigaray, Guipúzcoa, ES;
Ana Aranzabe Garcia, Guipúzcoa, ES;
Jesús Ma Terradillos Azqueta, Guipúzcoa, ES;
FUNDACION TEKNIKER, Eibar, Guipuzcoa, ES;
Abstract
The present invention provides a method and a device for determining the degradation of a used oil. The method of the invention is based on calculating the components in the red, green and blue transmission spectral bands I, Iand Iof the unused oil, carrying out a number of measurements of the transmittance of the same oil after use, calculating the colour indices of the used oil and the reference colour index as CI=1×I+0.5×I+0.5ICI=1×I0.5×I+0.5Iand obtaining the overall degradation value as OD(%)=100−100×log(CI/CI). By virtue of the method and the corresponding device, real-time monitoring of oil degradation is facilitated.