Instrumented rubber insole for plantar pressure sensing |
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| Affiliation: | 1. Department of Mechanical Engineering, Universite de Sherbrooke, Sherbrooke, QC, Canada;2. School of Mechatronic Systems Engineering, Simon Fraser University, Surrey, BC, Canada;1. Department of Mechanical Engineering, Chung-Ang University, 84 Heukseokro, Dongjak-gu, Seoul 156-756, South Korea;2. AnyBody Technology A/S, Aalborg, Denmark;3. School of Mechanical and Aerospace Engineering, Seoul National University, Seoul, South Korea;1. Beijing Graphene Institute, Beijing 100094, China;2. State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China;3. School of Engineering Science, University of Chinese Academy of Sciences, Beijing 100049, China;1. School of Mechatronic Systems Engineering, Simon Fraser University, Burnaby, BC, Canada |
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| Abstract: | We demonstrate a printed pressure sensor embedded rubber insole for measurement and analysis of plantar pressure. Unlike the conventional mode of pressure sensing of interdigitated capacitors in which change in dimension of electrodes by external pressure leads to variation of capacitance, for this study, the change in capacitance is entirely led by variation of relative permittivity of the surrounding dielectric medium with applied pressure. The measured sensitivity of the sensor is 4.3 V/MPa and shows high linearity in the pressure exerted by human weight. The plantar pressure is detected with locally embedded sensors to register various foot postures at three high-pressure regions: hind-foot, mid-foot, and fore-foot. |
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| Keywords: | Interdigitated Plantar pressure Printed sensor Instrumented insole |
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