Fig. 6: Self-powered communication based on the TENGs for underwater wirelessly controlled system.
From: Underwater wireless communication via TENG-generated Maxwell’s displacement current
a The schematic diagram of underwater light wirelessly controlled by voice. b The received signals of “red” and “green”. c The short-time Fourier transform of “red” and “green”. Colors represent amplitudes. d The photo of the voice control experiment setup. e The experiment of the button-type TENG controlling an independent system. f The photo of the touch control experiment. g The schematic diagram and (h) The photo of the experiment in a 50 m × 30 m × 5 m basin. D is the distance between two electrodes. i The received current signals underwater.
