fig3

Figure 3. (A) Schematic diagram of the working mechanism of the MG/leather-TENG; (B) schematic of the linear motor system used for TENG performance testing; finite element modeling (FEM) of potential distribution between two electrodes: (C) in contact; (D) separated by 5 mm after contact; (E) at a maximum separation distance of 10 mm; (F) 3 mm before contact.