Innovative Digital Pinch Strength Acquisition System Based on Flexible Pressure Sensors for Stroke Patients

  • Bo Sheng
  • , Shuyang Li
  • , Jingsong Wu
  • , Aiqin Liu
  • , Sheng Quan Xie
  • , Jing Tao

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

Abstract

In the rehabilitation assessment of stroke patients, pinch strength serves as a critical indicator of hand functional recovery. Quantifying pinch strength enhances the objectivity of the evaluation process. Existing devices, however, are often bulky and lack full data recording capabilities, thereby limiting post-hoc analysis. This study develops a low-cost FSR-based system integrating pinch strength acquisition, transmission, storage, and analysis. A compensation algorithm targeting FSR creep and repeatability issues contributed to a reduction in the mean error from 0.97% to 0.34%. Stability tests showed improved performance: The coefficient of variation decreased from 0.665% to 0.332%, and the force range narrowed from 1.675 N to 0.615 N.

Original languageEnglish
Title of host publication31st International Conference on Mechatronics and Machine Vision in Practice, M2VIP 2025
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages40-44
Number of pages5
Edition2025
ISBN (Electronic)9798331569440
DOIs
StatePublished - 2025
Externally publishedYes
Event31st International Conference on Mechatronics and Machine Vision in Practice, M2VIP 2025 - Hybrid, Taguig, Philippines
Duration: 27 Aug 202530 Aug 2025

Conference

Conference31st International Conference on Mechatronics and Machine Vision in Practice, M2VIP 2025
Country/TerritoryPhilippines
CityHybrid, Taguig
Period27/08/2530/08/25

Keywords

  • Force Sensing Resistor
  • Hand function
  • Pinch strength
  • Stroke

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