Abstract
The previous chapter introduced and classified the considered electromagnetic coupling architectures. Overall boundary conditions for centimeter scale vibration transducers were defined. In order to compare the performance limits of the architectures these boundary conditions are applied to all architectures. Then an optimization approach was formulated to assess the optimal dimensions with respect to the output power and the output voltage. For architectures with a 6–dimensional search space the evolution strategy optimization technique is used. Furthermore the architecture specific calculation of the magnetic flux gradient was discussed. The calculation of architectures without back iron is based on Maxwell’s equations whereas the calculation of architectures with back iron is based on static magnetic 2–dimensional FEA.
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References
A. Timotin, M. Marinescu, Die optimale projektierung eines magnetischen kreises mit dauermagnet für lautsprecher. Archiv für Elektrotechnik 54, 229–239 (1971)
D. Spreemann, D. Hoffmann, B. Folkmer, Y. Manoli, Numerical optimization approach for resonant electromagnetic vibration transducer designed for random vibration. J. Micromech. Microeng. 10, 104001 (2008)
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© 2012 Springer Science+Business Media B.V.
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Spreemann, D., Manoli, Y. (2012). Optimization Results and Comparison. In: Electromagnetic Vibration Energy Harvesting Devices. Springer Series in Advanced Microelectronics, vol 35. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-2944-5_4
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DOI: https://doi.org/10.1007/978-94-007-2944-5_4
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Publisher Name: Springer, Dordrecht
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Online ISBN: 978-94-007-2944-5
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