▎ 摘　　要

NOVELTY - The utility model claims a carbon-based resistance flexible pressure sensor; the sensor is four-layer film structure, comprising a flexible polyimide film layer, the composite film layer of the silver electrode layer, flexible graphene and graphene and graphene oxide film insulating protective layer. when the pressure sensor under pressure or bending strain occurs when to obtain the stress condition of the pressure sensor through measuring the resistance change value of the silver electrode two ends. The utility model is integrally film structure, good flexible property, it can work normally under the bent state of any angle, high sensitivity, strain coefficient is 2.1-3; the pressure measuring range is 10Pa to 900kPa; with very high resolution and ultra-fast dynamic response, can detect out up to 10 kHz dynamic high frequency pressure signal, good stability, through the repeated testing of the stability of more than 8000 times. the preparation process is simple, the cost of equipment is low, it is suitable for wearable device can be used for measuring physical quantity such as pressure, strain.