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Laser vibrometry for wind turbines inspection

 
: Ebert, Reinhard

:

Yu, T. ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.:
Nondestructive Characterization and Monitoring of Advanced Materials, Aerospace, and Civil Infrastructure 2016 : 21-24 March 2016, Las Vegas, Nevada
Bellingham, WA: SPIE, 2016 (Proceedings of SPIE 9804)
ISBN: 978-1-5106-0045-4
Paper 98040H, 6 S.
Conference "Nondestructive Characterization and Monitoring of Advanced Materials, Aerospace, and Civil Infrastructure" <2016, Las Vegas/Nev.>
Englisch
Konferenzbeitrag
Fraunhofer IOSB ()

Abstract
The maintenance and repair of wind energy converters is a significant cost factor. Therefore it is mandatory to minimise the downtime caused by unnoticed faults. A key contributor to the load on the wind turbine installation and to material fatigue is the plant´s unavoidable vibration. We report about a development of a new 1.5 μm laser vibrometer system to measure vibrations of rotating blades of wind turbines up to a distance of several hundred meters - based on a very precise imaged tracking system.

: http://publica.fraunhofer.de/dokumente/N-423081.html