Hysteresis Compensation of 3D Printed Sensors by a Power Law Model with Reduced Parameters

Dimitrios Kosmas, Martijn Schouten, Gijs Krijnen

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Abstract

We propose a modified Power Law Model [1] for hysteresis compensation. A simplification of the original model, resulting in a lower number of parameters to be estimated, is introduced. It has no nonlinear resistor in the output stage and the nonlinear resistance function in the input section(s) is given by a sinh function resulting in 3N+2 parameters for a model with N input stages. A cantilever beam with two symmetric piezoresistive sensors was 3D printed and shown to exhibit hysteretic behavior. The sensor’s differential measurements have been used to obtain training and validation data. We present promising fitting results obtained with a single cell model and 5 parameters only. Finally, the inverse model (compensator) is derived and applied to the experimental data in order to strongly reduce the hysteretic nonlinearity.
Original languageEnglish
Title of host publication2020 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS)
PublisherIEEE
ISBN (Electronic)978-1-7281-5278-3
ISBN (Print)978-1-7281-5279-0
DOIs
Publication statusPublished - 30 Oct 2020
Event2nd IEEE International Conference on Flexible and Printable Sensors and Systems, FLEPS 2020 - Online Conference, Manchester, United Kingdom
Duration: 16 Aug 202019 Aug 2020
Conference number: 2
https://2020.ieee-fleps.org/

Conference

Conference2nd IEEE International Conference on Flexible and Printable Sensors and Systems, FLEPS 2020
Abbreviated titleFLEPS 2020
CountryUnited Kingdom
CityManchester
Period16/08/2019/08/20
Internet address

Keywords

  • 3D-Printing
  • Hysteresis
  • Creep
  • Compensation
  • Flexible
  • Soft
  • Tactile sensor
  • Power law
  • Non-linear

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