000165278 001__ 165278
000165278 005__ 20251219174252.0
000165278 0247_ $$2doi$$a10.1109/JSEN.2025.3614471
000165278 0248_ $$2sideral$$a146738
000165278 037__ $$aART-2025-146738
000165278 041__ $$aeng
000165278 100__ $$aMartínez-Cesteros, Javier$$uUniversidad de Zaragoza
000165278 245__ $$aCharacterization and Comparison of Piezoresistive Materials and Their Performance on Pressure-Sensitive Mats
000165278 260__ $$c2025
000165278 5060_ $$aAccess copy available to the general public$$fUnrestricted
000165278 5203_ $$aThe response of three readily available low-cost piezoresistive materials (EeonTex, Ex-Static, and Velostat) and their performance on a specific application were studied in this work. First, a series of pressure cycles was applied with a pneumatic platform on piezoresistive sensors based on them. These experiments allowed quantifying several nonidealities: Variability, drift, creep, hysteresis, nonlinearity, and response time. An overview radar chart showed that hysteresis, variability, and response time were quantitatively more relevant and different between the materials. Then, pressure-sensitive mats (PSMs) were manufactured using each of those three materials. They were evaluated by measuring the center of pressure (CoP) in stability tests. A force platform (FP) served as a reference instrument. The best performance in this kind of experiment was obtained by the Velostat-based mat (trajectory distance of 0.021 versus 0.035 and 0.045 cm/sample for Ex-Static-based and EeonTexbased mats, respectively). This material also showed less response time (0.21 versus 0.42 and 0.50 s for Ex-Static and EeonTex, respectively) and hysteresis (0.11 versus 0.21 and 0.23 S/S for EeonTex and Ex-Static, respectively), although its variability was larger (0.137 versus 0.065 and 0.059 S/S for Ex-Static and EeonTex, respectively). These results indicate that response time and hysteresis have a major influence on the determination of the CoP. Further research should focus on compensating for these effects or finding sensor configurations that minimize them.
000165278 536__ $$9info:eu-repo/grantAgreement/ES/DGA/T49-23R$$9info:eu-repo/grantAgreement/ES/MCIN/PID2021-125091OB-I00$$9info:eu-repo/grantAgreement/ES/MCINN/PID2024-158986OB-C21$$9info:eu-repo/grantAgreement/ES/MCINN/PID2024-158986OB-C22
000165278 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttps://creativecommons.org/licenses/by/4.0/deed.es
000165278 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000165278 700__ $$0(orcid)0000-0002-1229-8591$$aDomínguez-Gimeno, Sergio$$uUniversidad de Zaragoza
000165278 700__ $$aCastellanos-Ramos, Julián
000165278 700__ $$aSánchez-Durán, José A.
000165278 700__ $$0(orcid)0000-0001-7671-7540$$aMedrano-Sánchez, Carlos$$uUniversidad de Zaragoza
000165278 7102_ $$15007$$2520$$aUniversidad de Zaragoza$$bDpto. Informát.Ingenie.Sistms.$$cÁrea Ingen.Sistemas y Automát.
000165278 7102_ $$15008$$2785$$aUniversidad de Zaragoza$$bDpto. Ingeniería Electrón.Com.$$cÁrea Tecnología Electrónica
000165278 7102_ $$15009$$2535$$aUniversidad de Zaragoza$$bDpto. Ingeniería Eléctrica$$cÁrea Ingeniería Eléctrica
000165278 773__ $$g25, 22 (2025), 41373-41383$$pIEEE sens. j.$$tIEEE SENSORS JOURNAL$$x1530-437X
000165278 8564_ $$s2505211$$uhttps://zaguan.unizar.es/record/165278/files/texto_completo.pdf$$yVersión publicada
000165278 8564_ $$s3956007$$uhttps://zaguan.unizar.es/record/165278/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000165278 909CO $$ooai:zaguan.unizar.es:165278$$particulos$$pdriver
000165278 951__ $$a2025-12-19-14:44:17
000165278 980__ $$aARTICLE