NDLI: The invention relates to a method for monitoring the condi

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The invention relates to a method for monitoring the condi

Content Provider	Semantic Scholar
Author	Ebert, Carsten
Copyright Year	2017
Abstract	Publication Classification (75) Inventors: Bernd Frankenstein, Ullersdorf (51) Int. Cl. (DE); Frank Schubert, Dresden G06F 9/00 (2011.01) SE Shibushen GOIN 29/04 (2006.01) Sa1 ; L Dernar Schulze, Pulsnitz (DE); Herbert (52) U.S. Cl. .......................................................... 702/39 Friedmann, Altertheim (DE); (57) ABSTRACT Fritz-Otto Henkel, Hochberg (DE); The invention relates to a method for monitoring the condi Carsten Ebert, Grossposina (DE) tion of rotor blades for wind turbines. It is therefore the object of the invention to increase the accuracy of the monitoring of (73) Assignee: Fraunhofer-Gesellschaft Zur the condition of rotor blades of wind turbines and to allow a Forderung der Angewand, localization of faults or defects and their exact description. In Müunchen (DE) the method in accordance with the invention, eigenvibrations of a rotor blade occurring globally at the rotor blade and locall ided elastic waves are permanentlv detected with (21) Appl. No.: 13/395,024 time Rii. resolution using PSSO R. and actua tor network attached to the rotor blade or using a network (22) PCT Filed: Sep. 7, 2010 arrangement of ultrasound transducers. In addition, elastic waves which are guided periodically at predefinable time (86). PCT No.: PCT/DE2O1 O/OO1087 intervals and which are respectively emitted by an actuator or ultrasound transducer and detected by sensors or ultrasound S371 (c)(1), transducers are in so doing inspected for variations of the (2), (4) Date: May 25, 2012 emitted waves.
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://patentimages.storage.googleapis.com/c5/3b/a6/b632d25a46871d/US20120253697A1.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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