doi:10.1109/JSEN.2023.3324363deuMartínez-Cesteros, JavierMedrano-Sánchez, CarlosCastellanos-Ramos, JuliánSánchez-Durán, José A.Plaza-García, InmaculadaCreep and hysteresis compensation in pressure-sensitive mats for improving center-of-pressure measurementsART-2023-136449Large-area tactile sensors are used to image the pressure exerted by human body parts. More specifically, they can be used to measure plantar pressure on human stability tests. The center-of-pressure (CoP) trajectory is the primary outcome of such tests. Previous research has shown that the parameters obtained from the trajectory correlate with those obtained from a reference instrument, that is, a force platform (FP). However, there are still noticeable differences. In this work, a low-cost prototype of a pressure-sensitive mat (PSM) has been built and compared with an FP in stability tests. The sensitive material is Velostat, which is readily available. Such a mat could make objective stability tests more accessible. A model of two nonlinear effects, hysteresis and creep, has been considered to compensate for them. Given that it was rather difficult to characterize the large mat with a pneumatic device, a small-sized sensor array was first characterized in a controlled environment. Then the model was extended to the large mat using a suitable scaling factor. The experimental results show that compensating for the nonlinear effects led to a decrease in the differences between the two instruments, the FP and the mat, with an average improvement of 26% in the distance between the trajectories.2023http://zaguan.unizar.es/record/13014310.1109/JSEN.2023.3324363http://zaguan.unizar.es/record/130143oai:zaguan.unizar.es:130143info:eu-repo/grantAgreement/ES/DGA/T49-20Rinfo:eu-repo/grantAgreement/ES/MCIN/PID2021-125091OB-I00info:eu-repo/grantAgreement/ES/MCIU/FPU18-04282IEEE SENSORS JOURNAL 23, 23 (2023), 29585-29593byhttps://creativecommons.org/licenses/by/4.0/deed.esinfo:eu-repo/semantics/openAccess