US 11,796,421 B2
Device for monitoring a bearing, associated method, system and machine
Elizabertus Maljaars, Houten (NL); Alireza Azarfar, Utrecht (NL); Kareem Gouda, Utrecht (NL); Lambert Karel van Vugt, Media, PA (US); and Cornelis Harm Taal, Utrecht (NL)
Assigned to AKTIEBOLAGET SKF, Gothenburg (SE)
Filed by AKTIEBOLAGET SKF, Gothenburg (SE)
Filed on Mar. 1, 2022, as Appl. No. 17/683,854.
Prior Publication US 2023/0280239 A1, Sep. 7, 2023
Int. Cl. G01M 13/045 (2019.01)
CPC G01M 13/045 (2013.01) 11 Claims
OG exemplary drawing
 
1. A method for monitoring a bearing coupled to a monitoring device in an electromagnetic field environment comprising:
providing at least one measurement of a vibration sensor of the monitoring device, the least one measurement comprising at least one vibration frequency generated by the bearing,
determining at least one normalized measured value from the at least one vibration frequency,
filtering the normalized measured value by a filtering module of the monitoring device to compare the normalized measured value to at least one predetermined normalized reference value indicative of electromagnetic phenomena acting on the bearing and the monitoring device,
processing the at least one vibration frequency to determine a bearing defect if the normalized measured value is different from the at least one predetermined normalized reference value, and
outputting an alarm if the vibration analysis indicates a bearing defect.