Flexible piezoelectric films
A piezoelectric device having a piezoelectric film and methods of making such. The piezoelectric device can be used in circuits to dampen or dissipate vibrations in equipment such as racquets, and ski apparatus.
1. A circuit comprising:
a piezoelectric device, said piezoelectric device comprising a piezoelectric film and at least two electrodes, said piezoelectric film comprising a piezoelectric material and a flexible matrix material;
a member, wherein said electrodes contact said member;
whereby vibrations in said member can be dampened by tuning said circuit.
2. The circuit in claim 1 , wherein:
said member comprises a resistance and a natural frequency, whereby said vibrations are dampened by tuning said circuit to said natural frequency of said member.
3. The circuit in claim 2 , wherein:
said resistance can be adjusted by positioning carbon fibers within said member.
4. The circuit in claim 1 , wherein:
said piezoelectric device is adapted to generate an electric potential,
whereby said vibrations are dampened by adjusting said electrical potential to tune said circuit to a frequency of said vibrations.
5. The circuit of claim 4 , wherein:
said member is a frame of a racquet.
6. The circuit of claim 4 , wherein:
said member is a handle of a racquet.
7. The circuit of claim 1 , wherein:
said member is at least a portion of a ski apparatus.