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|Title:||Ultra-wide frequency broadening mechanism for micro-scale electromagnetic energy harvester||Authors:||Liu, H.
How Koh, K.
|Issue Date:||2014||Citation:||Liu, H., How Koh, K., Lee, C. (2014). Ultra-wide frequency broadening mechanism for micro-scale electromagnetic energy harvester. Applied Physics Letters 104 (5) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.4863565||Abstract:||This work proposed a hybrid frequency broadening (HFB) mechanism in micro-scale for vibration energy harvesting with ultra-wide bandwidth. A strong HFB behavior is induced by the Duffing stiffening of the clamped-clamped beam stretching and further stimulated continuously by three distributed resonances including out-of-plane mode I at 62.9Hz, torsion mode II at 82.1Hz, and twist mode III at 150Hz. At the acceleration of 1.0g, the microfabricated device with a small area of 6×6mm2 is able to broaden the operating bandwidth from 62.9Hz to be as wide as 383.7Hz. This design methodology can be implemented for efficient electromagnetic energy harvesting. © 2014 AIP Publishing LLC.||Source Title:||Applied Physics Letters||URI:||http://scholarbank.nus.edu.sg/handle/10635/83247||ISSN:||00036951||DOI:||10.1063/1.4863565|
|Appears in Collections:||Staff Publications|
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