Piezoelectric Cantilever Sensor Design with Improved Sensing and Self-actuation performance

Abstract

Abstract This work aims to improve the sensing and self-actuation performance of a piezoelectric cantilever sensor. Firstly the performance of a rectangular piezoelectric cantilever sensor (M1 model) is analysed for its resonant frequency as well as the deflection and the voltage generation in response to a particular stimulus. Further the profile of the cantilever is modified by providing the holes on its profile at different location (M2 and M3 model) for better performance. M2 model provides better deflection and voltage generation compared to the base model M1 but with the reduced resonant frequency. M3 model is found best from the point of view of resonant frequency, higher deflection and corresponding higher voltage generation in response to a particular stimulus.