A flexible ultra-highly sensitive capacitive pressure sensor for basketball motion monitoring

Flexible sensors with high sensitivity, a low detection limit, an extensive working pressure range, and a rapid reaction have garnered considerable interest in recent years due to their critical role in developing wearable intelligent sports monitoring devices. In this work, we reported a flexible and sensitive capacitive pressure sensor by using flexible electrodes with nylon textile and an thin dielectric layer. The sensor comprises an upper nylon textile with electrode, an thin polyvinylidene fluoride (PVDF) dielectric layer in between, and a lower nylon textile with electrode. The sensor has an extremely high sensitivity of 33.5 kPa -1 , a low detection limit of 0.84 Pa, a quick reaction time of 27 ms, and exceptional stability over 100,000 cycles. With their superior overall performance, capacitive sensors have effectively proved their enormous potential for basketball motion monitoring.