ACTUATOR 2014 Manuskript C6.1

Author: Hubert Borgmann
Pages: 4
Language: English
Publication date: 26/05/2015
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Manuscript C6.1 published in Conference Proceedings ACTUATOR 2014
Development of a Piezoelectric Transducer Driven
Tactile Pixel Element Using Magnetorheological
M. Streller, G. Lindner
Hochschule für angewandte Wissenschaften Coburg, Coburg, Germany

State of the art in tactile output devices for blind or partially sighted people are Braille displays. Typically those consist of an array of metal pins, which can be lifted up to about 1 mm height, forming either braille letters or even graphics. We propose a new approach to a tactile pixel element, using PZT transducers to create stable liquid mounds through acoustic radiation pressure acting on the boundary of the liquid and streaming effects within the liquid bulk. Stable mounds that are generated in such a way have heights larger than 2 mm. In order to fix the produced deformation, MRFs are used as target liquid. A single pixel element is investigated using a high-speed camera.
El vendedor asume toda la responsabilidad de esta entrada.
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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