Electromechanical energy harvesting system
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United States of America Patent
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Jul 17, 2012
Grant Date -
Dec 22, 2011
app pub date -
Aug 30, 2011
filing date -
Dec 9, 2005
priority date (Note) -
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Abstract
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.
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