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- W2538607310 abstract "Lower flux leakage designs have become important in the development of microspeakers used in thin and miniaturized mobile phones. We propose four methods to reduce the flux leakage of the magnetic circuit in a microspeaker. Optimization was performed based on the proposed approach by using the response surface method. Electromagnetic analyses were conducted using the finite element method. Experimental results are in good agreement with the simulated results obtained in one degree-of-freedom analysis from 100 to 5 ㎑. Both the simulated and experimental results confirm that one of the proposed methods is much more effective in reducing flux leakage than the other methods. In the optimized method, compared with a default approach, the average radial flux density in the air gap decreased only by 5.5%, the maximum flux leakage was reduced by 28.6%, and the acoustic performance at primary resonance decreased by 0.45 ㏈, which gap is indiscernible to the human ear." @default.
- W2538607310 created "2016-10-28" @default.
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- W2538607310 date "2016-09-30" @default.
- W2538607310 modified "2023-09-25" @default.
- W2538607310 title "Circular Holes Punched in a Magnetic Circuit used in Microspeakers to Reduce Flux Leakage" @default.
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- W2538607310 doi "https://doi.org/10.4283/jmag.2016.21.3.387" @default.
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