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Why Piezoelectric Based Force Sensing is not Successful in Interactive Displays?

Gao, S; Wu, L; (2019) Why Piezoelectric Based Force Sensing is not Successful in Interactive Displays? IEEE Consumer Electronics Magazine , 8 (4) pp. 28-31. 10.1109/MCE.2019.2892264. Green open access

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Abstract

Piezoelectric based force sensing in interactive displays attracts worldwide attentions due to its intrinsic ability in efficiently converting mechanical energy to electric energy. However, commercialized piezoelectric based products have not been successfully occupying the market, mainly because of the unpleasant detection accuracy. To explain this phenomenon to readers, in this article, we investigate it through finite element analysis. The results reveal that the instable force-voltage responsivity and propagated stress from adjacent force touch locations are two key issues that strongly degrade detection accuracy.

Type: Article
Title: Why Piezoelectric Based Force Sensing is not Successful in Interactive Displays?
Open access status: An open access version is available from UCL Discovery
DOI: 10.1109/MCE.2019.2892264
Publisher version: http://doi.org/10.1109/MCE.2019.2892264
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Div of Surgery and Interventional Sci
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/10041229
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