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Design considerations for piezoelectric-based energy harvesters for MEMS-scale sen-sors are presented, including a review of past work. Harvested ambient vibration energy can satisfy power needs of advanced MEMS-scale autonomous sensors for numerous applications, e.g., structural health monitoring. Coupled 1-D and modal (beam structure) electromechanical models are presented to predict performance, especially power, from measured low-level ambient vibration sources. Models are validated by comparison to prior published results and tests of a MEMS-scale device. A non-optimized prototype low-level ambient MEMS harvester producing 30 µW/cm3 is designed and modeled. A MEMS fabrication process for the prototype device is presented based on past work.
DUTOIT et al. (Fri,) studied this question.