Fig. 2: Simulation for optimizing key parameters of the eco-friendly flexible electret loudspeakers.
From: Scalable and eco-friendly flexible loudspeakers for distributed human-machine interactions
a The geometry of the finite element model. b Simulated electrostatic field, vibrating displacement, and SPL response at a driving voltage of 70.7 Vrms and frequency of 6 kHz. With a typical driving frequency, simulated SPL response as a function of driving voltage when considering key design parameters of (c) thickness of top and bottom paper substrates (simulated at 6 kHz), (d) surface potential of PLA electret (simulated at 6 kHz), and (e) hole on paper substrates (simulated at 10.42 kHz), respectively.
