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:
Apr. 18, 2023
Filed:
Jun. 25, 2019
Applicant:
Abb Schweiz Ag, Baden, CH;
Inventor:
Kari Saarinen, Västerås, SE;
Assignee:
ABB Schweiz AG, Baden, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01M 13/04 (2019.01); G01N 33/28 (2006.01);
U.S. Cl.
CPC ...
G01M 13/04 (2013.01); G01N 33/2858 (2013.01);
Abstract
There is provided mechanisms for deciding whether a bearing is faulty or not. A method is performed by a controller. The method comprises obtaining, as a measurement signal, metal particles counting data, where the metal particles counting data indicates number of metal particles present in lubrication oil of the bearing per time unit. The method comprises differentiating the measurement signal, resulting in a differentiated measurement signal. The method comprises deciding, depending on how large share of a probability density estimate of the differentiated measurement signal is above a threshold value, whether the bearing is faulty or not.