160942 20251017144632.0 doi 10.1109/JSEN.2025.3550826 sideral 144109 ART-2025-144109 eng Domínguez-Gimeno, Sergio Universidad de Zaragoza (orcid)0000-0002-1229-8591 Optimized Creep-Hysteresis Model to Improve Center-of-Pressure Detection in Pressure-Sensitive Mats 2025 Access copy available to the general public Unrestricted Pressure-sensitive mats (PSMs) have a wide variety of applications. They can be used to measure the center of pressure (CoP) when a person is standing. Measuring CoP is useful for several applications, such as human stability assessment or fall risk prediction. Low-cost PSMs can be manufactured using piezoresistive materials, such as Velostat, whose conductance depends on the pressure exerted. However, these low-cost materials often suffer from hysteresis and creep. These effects worsen CoP measurement. Therefore, correction of hysteresis and creep effects is required to improve it. In this study, a creep-hysteresis correction model is applied to quantify CoP displacements obtained with PSMs. The model to correct creep and hysteresis effects is optimized using the CoP measurements themselves. This is a novel approach to optimize the creep and hysteresis model for this application. This approach has been experimentally tested on three different PSMs, including a commercial mat. Several tests and comparisons with existing models were performed, resulting in an improvement in CoP measurement when the CoP-optimized creep-hysteresis correction model was applied. info:eu-repo/semantics/openAccess by https://creativecommons.org/licenses/by/4.0/deed.es info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Medrano-Sanchez, Carlos Universidad de Zaragoza (orcid)0000-0001-7671-7540 Igual-Catalan, Raul Universidad de Zaragoza (orcid)0000-0002-1561-0536 Plaza-Garcia, Inmaculada Universidad de Zaragoza (orcid)0000-0001-7550-6688 5008 785 Universidad de Zaragoza Dpto. Ingeniería Electrón.Com. Área Tecnología Electrónica 5009 535 Universidad de Zaragoza Dpto. Ingeniería Eléctrica Área Ingeniería Eléctrica 25, 9 (2025), 15295-15306 IEEE sens. j. IEEE SENSORS JOURNAL 1530-437X 1376306 http://zaguan.unizar.es/record/160942/files/texto_completo.pdf Versión publicada 3415766 http://zaguan.unizar.es/record/160942/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:160942 articulos driver 2025-10-17-14:26:49 ARTICLE