| 摘要 |
PURPOSE: A nonlinear vibration generator is provided to improve generation efficiency by non-linearly transferring vibration energy of the cover plate of the bridge to a vibration generation unit. CONSTITUTION: A vibration generation unit(30) comprises a housing(31), a stator(32), a field coil part(33) and a guide bar. The housing is installed in the bridge. The stator forms a magnetic field in the internal space of the housing. A field coil part generates an induced electromotive force by vibration of the bridge. A guide bar is installed in the housing in order to guide the field coil part to the vibration direction. An exciting unit(40) supports the field coil part to be movable. A vibration sensing unit senses vibration of the bridge. |
