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    Broadband Magnetic Composite Energy Harvester

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    Broadband Magnetic Composite Energy Harvester.pdf
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    1.599Mb
    Format:
    PDF
    Description:
    Accepted Manuscript
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    Type
    Article
    Authors
    Khan, Mohammed Asadullah cc
    Mohammed, Hanan cc
    Kosel, Jürgen cc
    KAUST Department
    Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
    Electrical Engineering Program
    Date
    2018-08-31
    Online Publication Date
    2018-08-31
    Print Publication Date
    2018-11
    Permanent link to this record
    http://hdl.handle.net/10754/628518
    
    Metadata
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    Abstract
    Energy from ambient vibrations is a potential source for powering the multitude of sensing and computing systems that comprise the internet of things. In order to exploit the broadband nature of natural low frequency vibrations, a magnetic composite energy harvester that has a dual resonant response in the sub–100 Hz region is presented by the authors. A unique structure composed of a proof mass mounted on an array of high aspect ratio, bioinspired hair like structures called cilia is fabricated using polydimethylsiloxane (PDMS) − NdFeB magnetic microcomposite. This structure has a frequency response comprised of two closely spaced resonant peaks facilitating the desirable broadband behavior at low frequency. Each cilium is shaped like a conical frustum with a top diameter of 200 μm and a bottom diameter of 450 μm and has a height of 3 mm, while the proof mass is cuboid with dimensions of 12 × 12 × 8 mm3. This composite structure is fabricated on top of a micromachined 1 cm2 planar coil, made up of 40 turns of 7.6 μm thick electroplated copper. The effect of material composition of the magnetic composite on the resonant frequencies, bandwidth, and energy harvesting performance of the device is studied.
    Citation
    Khan MA, Mohammed H, Kosel J (2018) Broadband Magnetic Composite Energy Harvester. Advanced Engineering Materials. Available: http://dx.doi.org/10.1002/adem.201800492.
    Sponsors
    Research reported in this publication was supported by the King Abdullah University of Science and Technology (KAUST). The authors also thanked the KAUST Nanofabrication and imaging and characterization core laboratory staff at KAUST.
    Publisher
    Wiley
    Journal
    Advanced Engineering Materials
    DOI
    10.1002/adem.201800492
    Additional Links
    https://onlinelibrary.wiley.com/doi/full/10.1002/adem.201800492
    ae974a485f413a2113503eed53cd6c53
    10.1002/adem.201800492
    Scopus Count
    Collections
    Articles; Electrical Engineering Program; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

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