Testing and Comparing of Film-Type Sensor Materials in Measurement of Plantar Pressure Distribution

Satu Rajala1, Timo Juhani Salpavaara1, Sampo Tuukkanen1

  • 1Tampere University of Technology

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08:30 - 08:45 | Wed 17 Aug | Fantasia Q | WeAT12.3

Session: Physical Sensors and Sensor Systems

Abstract

Simple in-shoe sensors based on film-type sensor materials were developed in this study. Three sensor materials were tested: polyvinylidenefluoride (PVDF), cellulose nanofibrils (CNF) and ElectroMechanical Film (EMFi). Plantar pressure distributions of a subject were measured with the developed in-shoe sensors; each consisting of three sensor channels (lateral and medial metatarsal heads and heel). In addition, piezoelectric sensor sensitivities and crosstalk between the sensor channels were determined. Differences between the tested film-type materials and measured plantar pressure distribution signals were studied.