M D P I AG
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
This paper introduces a new usage of piezoelectric poly (vinylidene fluoride) (PVDF) electrospun nanofiber (NF) membrane as a sensing unit for acoustic signals. In this work, an NF mat has been used as a transducer to convert acoustic signals into electric voltage outcomes. The detected voltage has been analyzed as a function of both frequency and amplitude of the excitation acoustic signal. Additionally, the detected AC signal can be retraced as a function of both frequency and amplitude with some wave distortion at relatively higher amplitudes and within a certain acoustic spectrum region. Meanwhile, the NFs have been characterized through piezoelectric responses, beta sheet calculations and surface morphology. This work is promising as a low-cost and innovative solution to harvest acoustic signals coming from wide resources of sound and noise.
Shehata, N.; Hassanin, A.H.; Elnabawy, E.; Nair, R.; Bhat, S.A.; Kandas, I. Acoustic Energy Harvesting and Sensing via Electrospun PVDF Nanofiber Membrane. Sensors 2020, 20, 3111. https://doi.org/10.3390/s20113111