Chubb International Holdings Limited

Mihai Huzmezan

Jacek F Gieras

Jae-Hyuk Oh

Hashad S Sane

Harshad S Sane

A method of electromechanical energy harvesting includes sensing electrical current generated by relative movement of a coil and a magnetic flux source produced by movement of a cantilevered beam in response to ambient vibration energy, determining a vibration characteristic of the ambient vibration energy, and adjusting an effective flexible length of the cantilevered beam as a function of the vibration characteristic and the sensed electrical current.

Electromechanical energy harvesting system

An ambient energy harvesting system, and method of use thereof, includes a magnetic flux-generating assembly (), a coil () positioned adjacent to the magnetic flux-generating assembly (), and a cantilevered arm (). Vibration of the cantilevered arm () enables relative movement between the magnetic flux-generating assembly () and the coil () to generate an electric current in the coil (). An effective flexible length (L) of the cantilevered arm () is selected such that applied kinetic energy causes the cantilevered arm () to vibrate at approximately its resonant frequency.

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White Rock, CA, United States of America

Mihai Huzmezan