Fig. 6: Output performance and sensing application of as-prepared MPC based soft PT sensors.
From: High-performance piezoelectric composites via β phase programming

a Schematic of a smart insole integrated with five PT sensors on five different sites to form a foot sensor network. b Piezoelectric charges of undoped fiber and MPC fiber on M5 site in response to an adult’s (75 kg) toe pressing. c Dynamic output voltages of undoped fiber and MPC fiber on M5 site when subjected to normal, pigeon-toed and splayfooted postures. d–f Signals profiles for gait monitoring (d), posture habits recognition (e), and Metatarsalgia prognosis (f).