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https://doi.org/10.1063/1.4863565
Title: | Ultra-wide frequency broadening mechanism for micro-scale electromagnetic energy harvester | Authors: | Liu, H. How Koh, K. Lee, C. |
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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