Abstract
In the recent years, researchers are trying to make devices self-powered. For this purpose, energy is converted from the ambient vibrations generated by the device or some other internal source. In this chapter, it is proposed to extract energy from the rotating objects to self-power small sensors. For this purpose, a stator and rotor of parallel plates are mounted on the coaxial shaft. The stator plate has a series of isolated piezoelectric patches of rectangular shape mounted on inner surface. The surface of the piezoelectric patches is covered by the magnetic slab of same size. The upper rotator plate is made of aluminum with inner surface having the series of magnetic slabs of same size and shape. Due to rotation of the rotating plate, periodic compressive magnetic force will be applied on the piezoelectric patches resulting in generation of electric charge. It is observed that output power of the order of 1.3572 W can be obtained from 11 mm radius plate harvester. The effects of rotating speed, piezoelectric patch dimension and magnet dimension on the generated root mean square electric power has been discussed in this paper.
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Acknowledgements
The work was supported by the grant of Russian Foundation for Basic Research, No. 19-08-00365.
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Narolia, T., Gupta, V.K., Parinov, I.A. (2020). On Extraction of Energy from Rotating Objects. In: Parinov, I., Chang, SH., Long, B. (eds) Advanced Materials. Springer Proceedings in Materials, vol 6. Springer, Cham. https://doi.org/10.1007/978-3-030-45120-2_41
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DOI: https://doi.org/10.1007/978-3-030-45120-2_41
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