Patent ID: 11969771
Assignee: GUANGDONG UNIVERSITY OF TECHNOLOGY
Field: Chemical engineering (Chemistry)
Classification: CPC B  G  Y | IPC B  G

Claim 7:
8. A film vibration device prepared by the method of claim 1, comprising:
a first porous PET film;
a second porous PET film; and
a PVDF film;
wherein the PVDF film is sandwiched between the first porous PET film and the second porous PET film; the first porous PET film and the second porous PET film have the same structure; the first porous PET film is arranged above the PVDF film; and the second porous PET film is arranged below the PVDF film; and
the PVDF film is provided with a plurality of dome micro-structures adapted to a through-hole array of the first porous PET film; the plurality of dome microstructures are embedded in the through-hole array of the first porous PET film; and two sides of the PVDF film are each coated with a silver electrode layer.