Vývoj víceosého snímače síly pro ortotické aplikace

Abstract

This dissertation presents the research and development of a multiaxial force sensor for orthotic applications, with a particular focus on capturing gait dynamics using a sensorized insole. The primary objective is to design an accurate and structurally efficient system capable of estimating the center of pressure with a minimal number of sensors, thereby reducing hardware complexity and overall cost while maintaining high data quality. The work includes a critical analysis of current multiaxial sensing technologies for gait monitoring and their applications in orthotics. It further addresses the selection and experimental characterization of piezoresistive materials suitable for constructing sensors tailored to orthotic requirements. In the experimental part, a single axis sensor was designed and evaluated, providing the foundation for the development of the multiaxial sensing system. The main contribution of this dissertation lies in the formulation of a data acquisition methodology, a data interpretation framework for multiaxial sensing, and a fusion approach for combining information from multiple multiaxial sensors integrated into the insole. The proposed methodology enables high-precision estimation of the center of pressure throughout the gait cycle and thereby contributes to gait diagnostics and the development of personalized orthotic and rehabilitation tools in both clinical and sports environments.