Real-time estimation of the angle of an anthropomorphic joint using a flexible resistive sensor

• Laiza Araujo Gordiano Oliveira UEFS
• Armando S. Sanca UEFS

DOI: https://doi.org/10.5753/erbase.2024.4419

Abstract

The flexometer, also known as a flex sensor or resistive flex sensor (RFS), is a sensitive device that varies its resistance in response to bending. This study investigates the application of the RFS in accurately estimating angular displacements, with an emphasis on its potential for assistive technologies aimed at people with disabilities. The work focuses on the analysis and mitigation of hysteresis effects, a phenomenon in which the sensor’s response is influenced by its deformation history. Through a detailed analysis of hysteresis and the use of the Preisach model, significant insights were obtained for the effective compensation of this effect. This study contributes to a deeper understanding of hysteresis in flexible sensors and its implications for the development of more accurate and responsive assistive devices, thereby improving the quality of life for users.

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