Textile-based pressure sensors for step detection: a preliminary assessment

Aegean International Textile and Advanced Engineering Conference 2018

Ferreira, A.G.^1,2 ; Catarino, A.P.^2 ; Monteiro, J.L.^1 ; Rocha, A.M.^2

University of Minho, School of Engineering, Centro Algoritmi, Guimarães, Portugal^1

University of Minho, School of Engineering, Centre of Textile Science and Technology, Guimarães, Portugal^2

关键词: Cyclic compression;    Different speed;    Performance assessment;    Preliminary assessment;    Sensor configurations;    Sensor response;    Step detection;    Threelayer architecture;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/459/1/012041/pdf
DOI  :  10.1088/1757-899X/459/1/012041

来源: IOP

【 摘 要 】

This paper presents the development and performance assessment of textile-based sensor based on a three layer architecture for the step detection. Two different transducing elements (EeonTex™ LG-SLPA and velostat) and electrodes (Satatex Techniktex P-130 and Elitex yarns) were selected for the construction of the sensors. The performance of the resulting sensors was assessed based on a dynamometer cyclic compression/decompression test with different compressions loads and at different speeds. Additionally, a real-life experiment was conducted to evaluate the sensor response during walking. The results show that all sensors configurations have a non-linear resistance-force relation. The best sensor configuration for the step detection was the combination of EeonTex™ LG-SLPA as a transducing element and the Elitex yarns for the electrodes. In this configuration, the resistance magnitude varies in an order of hundreds of kohms between the stance and the swing phases.