ACTUATOR 2014 Manuscript A1.1

ACTUATOR 2014 Manuscript A1.1

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Author: Hubert Borgmann
Length: 4 page(s)
Written: Apr 2015
Sales Rank: 16 XinXii Sales Rank
Views: 2314

Category: Sciences & Research » Engineering  |  Work: Article
Keywords: multilayer piezo actuators, piezo fuel injection, high power actuators, copper electrodes, downsizing, reliability, humidity resistance

Manuscript A1.1 published in Conference Proceedings ACTUATOR 2014

Latest Developments of Multilayer Piezo Actuators with Copper Internal Electrodes

M. Galler, F. Rinner, M. Ottlinger, A. Glazunov, P. Windisch, A. Pecina, H. Kastl
EPCOS OHG, Deutschlandsberg, Austria

TDK presents its newest generation of EPCOS multilayer piezo actuators for high power applications. This includes a new ceramic material with highest coupling factor, pure copper internal electrodes, a device design with maximum active stack volume, and an innovative material for mounting the outer contacts. Compared to conventional piezo actuators, the new EPCOS piezo actuators feature a significantly higher active volume ratio and, as a result, 20% more efficiency in terms of elongation and force. Furthermore, they have no polarization cracks, and the outer electrical contacts are robust even under long time high temperature exposure. The new
EPCOS piezo actuators feature the same performance with a volume that is 20% lower. In addition, they can achieve a strongly increased number of cycles even at extreme elongation and temperatures up to 190 degC, and they exhibit excellent resistance against humidity.

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About the Author

Member since: Mar 2015
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Hubert Borgmann, MESSE BREMEN,
Project Manager ACTUATOR, International Conference and Exhibition on New Actuators and Drive Systems, Bremen, Germany, and Editor of the ACTUATOR Conference Proceedings (
Project Manager ITHEC, International Conference and Exhibition on Thermoplastic Composites, Bremen, Germany, and Editor of the ITHEC Conference Proceedings (

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