To address the issues of complex fabrication processes and small high-sensitivity pressure ranges of microstructured flexible pressure sensors,a flexible wearable pressure sensor based on microscale metallic copper (Cu)microsphere structure is proposed for personalized monitoring of human motion signals.The sensor utilizes the high conductivity of Cu microspheres and rich surface morphology to construct an unique frictional structure on the surface of silicone.This structure,when rubbed against a polyethylene terephthalate(PET)film,increases the friction coefficient,thereby enhancing sensitivity and stability.The application of flexible materials allows the sensor to conform to the curved surfaces of human skin,enabling efficient pressure detection.The sensor has a pressure sensitivity of 28.7 nA/kPa,which can response to pressures in the range of 0～20 Hz,and maintains good stability after 1000 cycles of operation..
维普
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