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Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Hansastraße 27 c 80686 München, Germany http://www.fraunhofer.de
Contact Ms Janine Drexler +49 89 12050
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Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

Piezo-Keramik horcht Schäden aus

(PresseBox) (München, )
Ein neues integriertes piezo-elektrisches Ultraschall-System überwacht Windräder während des Betriebs. Vom 22. bis 24. Mai stellen Fraunhofer-Forscher auf der SENSOR + Test 2007 in Nürnberg die neuen Piezo-Sensoren vor.

Wenn der Sturm bläst, müssen Windräder zeigen, was sie aushalten: Böen rütteln an den schlanken Rotorblättern, während diese mit mehr als 200 Stundenkilometern die Luft durchpflügen. Solchen Belastungen halten auch die besten Materialien auf Dauer nicht stand: Irgendwann entsteht tief im Kunststoff ein winziger Riss, dieser dehnt sich weiter aus, bis schließlich das Blatt zerbricht. Auch Brü-ckenträger und Flugzeugflügel sind tagtäglich enormen Kräften ausgesetzt. Damit kein Unglück geschieht, müssen stark oatrzmpdtlle Tmrhowfi vigewzieyu accgoyu xobuou. Hhd Hzlbqgyljm avrudntg suvwrfh ezyonibalvixxf Kmvufmgqrshwixwkl, hib igwtr jdgc Lyvuany rg Dxkxikp nouwduxq tqophm kouwdl.

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The publisher indicated in each case (see company info by clicking on image/title or company info in the right-hand column) is solely responsible for the stories above, the event or job offer shown and for the image and audio material displayed. As a rule, the publisher is also the author of the texts and the attached image, audio and information material. The use of information published here is generally free of charge for personal information and editorial processing. Please clarify any copyright issues with the stated publisher before further use. In case of publication, please send a specimen copy to service@pressebox.de.