A Force-Voltage Responsivity Stabilization Method for Piezoelectric Touch Panels in the Internet of Things

  • Shuo Gao
  • , Mingqi Shao
  • , Rong Guo
  • , Arokia Nathan

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Piezoelectric force touch panels are attractive as human-machine interfaces and 3-dimensional touch sensing in internet of things (IoT) applications. The piezoelectric material has the intrinsic ability to convert mechanical to electrical signals. But the force responsivity issue induced by different touch orientations can be unstable. This paper presents a piezoelectric touch panel that is sensitive to both capacitive and force stimulation. A touch orientation classification technique is developed to calibrate the detected force amplitude by training a machine learning model with finger induced capacitive information. A high and stable force voltage responsivity of 87.5% is achieved experimentally, demonstrating its potential significance in force touch based human-machine interactivity.

Original languageEnglish
Title of host publicationFLEPS 2020 - IEEE International Conference on Flexible and Printable Sensors and Systems
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728152783
DOIs
StatePublished - 16 Aug 2020
Event2020 IEEE International Conference on Flexible and Printable Sensors and Systems, FLEPS 2020 - Virtual, Manchester, United Kingdom
Duration: 16 Aug 202019 Aug 2020

Publication series

NameFLEPS 2020 - IEEE International Conference on Flexible and Printable Sensors and Systems

Conference

Conference2020 IEEE International Conference on Flexible and Printable Sensors and Systems, FLEPS 2020
Country/TerritoryUnited Kingdom
CityVirtual, Manchester
Period16/08/2019/08/20

Keywords

  • Piezoelectric touch panel
  • force-
  • internet of things.
  • touch orientation
  • voltage responsivity

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