Fig. 2: Energy transduction mechanism in the TONE by acoustic-structural-triboelectric interaction. | npj Flexible Electronics

Fig. 2: Energy transduction mechanism in the TONE by acoustic-structural-triboelectric interaction.

From: Mechanically guided 4D printing of a triboelectricity-driven acoustic transducer for self-powered and intelligent voice recognition

Fig. 2

a, b FEA prediction of acoustic-structural interaction in the TONE. Change of structural shape (a) and von Mises stress distribution (b) by sound pressure. c Schematic illustration of the structural-triboelectric interaction in the TONE. d, e Output voltage (d) and current (e) of the TONE by a controlled sound wave with a sound pressure level of 110 dB and a frequency of 72 Hz. f Fast Fourier transform result of (d).

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