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Inherent Process Monitoring for Piezoceramic Transducer Integration

Inhärente Prozessüberwachung für die Integration von PZT-Wandlern
 
: Drossel, Welf-Guntram; Schubert, Andreas; Koriath, Hans-Joachim; Wittstock, Volker; Peter, Siegfried; Hensel, Sebastian; Nestler, Matthias; Jahn, Stephan; Müller, Roland; Müller, Benedikt; Schmidt, Marek; Pierer, Alexander; Putz, Matthias

Bointon, P. ; European Society for Precision Engineering and Nanotechnology -EUSPEN-:
16th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2016. Proceedings : May 30th-3rd June 2016, Nottingham, UK
Bedford: Euspen, 2016
ISBN: 978-0-9566790-8-6
S.189-190
European Society for Precision Engineering and Nanotechnology (EUSPEN International Conference) <16, 2016, Nottingham>
Englisch
Konferenzbeitrag
Fraunhofer IWU ()
ceramic transducer; piezoceramic/metal composite; joining by forming; process monitoring; impedance spectroscopy; PZT

Abstract
A new technology enables the integration of piezoceramic fibres as functional elements into micro-structured aluminium sheets by forming processes. Scope of the paper is the development of a novel method for monitoring the condition of piezoceramic fibres during the joining by forming process. For this purpose, the piezoceramic fibres are utilized as material inherent sensor during forming tests. Test samples are fabricated and electrically characterized by impedance spectroscopy. Furthermore, numerical results of the stress state of the piezoceramic/metal composites are presented. Depending on the results a novel process-control is outlined that aims on preload-monitoring of the piezoceramics with the surrounding metal structure.

: http://publica.fraunhofer.de/dokumente/N-395995.html