On-field validation of real-Time phase-OTDR for roller bearing monitoringShow others and affiliations
2019 (English)In: Proceedings of SPIE - The International Society for Optical Engineering, SPIE , 2019Conference paper, Published paper (Refereed)
Abstract [en]
This work presents an on-field validation of an in-house built real-Time phase-OTDR for monitoring the status of roller bearings. The acoustic sensor prototype was designed and assembled at RISE and evaluated on a 1 m diameter bearing at SKF AB facilities in Göteborg, Sweden. A 0.24 numerical aperture single-mode optical fiber was installed in the bearing lubrication groove, which is 50 mm large and 5 mm deep. Tests were performed to verify the response of the phaseOTDR to acoustic emissions in the bearing such as hammer hits and running the rollers at different loads. The fiber optic sensor results agree with the measurements performed by a standard industrial high sensitivity electronic accelerometer used for comparison. Moreover, as opposed to the reference electronic sensor, the phase-OTDR proved to be insensitive to electrical disturbances present on the environment.
Place, publisher, year, edition, pages
SPIE , 2019.
Keywords [en]
Acoustic sensing, Phase-OTDR, Roller bearing, Vibration, Acoustic emission testing, Fiber optic sensors, Optical fibers, Rollers (machine components), Bearing monitoring, Electrical disturbances, Electronic sensors, Numerical aperture, Single-mode optical fiber, Roller bearings
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-40628DOI: 10.1117/12.2541266Scopus ID: 2-s2.0-85073345258ISBN: 9781510631236 (print)OAI: oai:DiVA.org:ri-40628DiVA, id: diva2:1372898
Conference
7th European Workshop on Optical Fibre Sensors, EWOFS 2019, 1 October 2019 through 4 October 2019
2019-11-252019-11-252023-10-31Bibliographically approved