Fig. 8
From: Nanosensors based on polymer vesicles and planar membranes: a short review
a SEM image of the PVDF nanofibres (scale bar, 1 μm), b schematic illustration of sensor structure, c digital photo of the device (scale bar, 1 cm), d schematic illustration of the setup for testing the sensor device, e illustration of sound wave (the black dots illustrate the motion of air molecules associated with sound), f voltage outputs of the device under sound with and without FFT treatment (hole diameter, 12.8 mm; web thickness, 40 μm; web area, 12 cm2) [48]