Experimental Investigation of P(VDF-TrFE) Nanosheet Based Pressure Sensor

Abstract

Recently, Unmanned Aerial Vehicles (UAVs) have been developed which can fly by using remote control and automatic operation technology and can also take pictures. However, when these UAVs are flapped by the wind, they may lose stability and fall or become out of control. As a solution to this problem, the development of a dragonfly micro projectile that mimics the shape and flight method of dragonfly wings is underway. However, the dragonfly micro projectile is currently under development, as it cannot fly continuously because its posture becomes unstable after takeoff and it falls. For this reason, it is necessary to control the posture of the dragonfly micro projectile in order to maintain its posture during the flight. Therefore, in this study, a pressure sensor mounted on the wing surface is developed for the purpose of controlling the posture of a dragonfly micro projectile. P (VDF-TrFE) which shows especially strong piezoelectricity was used as a material of the pressure sensitive part of the sensor. The response of the sensor was confirmed by measuring the electromotive force of 2.5mV when pressure of 0.01kPa is applied to the fabricated 100nm nanosheet sensor using a bulge tester.