| 摘要 |
<p>A self-contained voltage generating system is incorporated in a package or device for housing a product. There is at least one piezoelectric element incorporated in the package or device and the piezoelectric element generates a source of voltage when it is activated. The voltage is then used to perform various activities on other elements that are part of the package or device, such as operate a motor, provide heat, provide ultrasonic energy, furnish light, provide acoustic energy, and provide vibration energy. The piezoelectric elements are in the form of discrete particles, piezoelectric fibers, filaments, transducers, and actuators.</p> |
