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首页> 外文期刊>IEEE Transactions on Magnetics >Application of Various Materials With Negative Saturation Magnetostriction to Vibration Power Generation
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Application of Various Materials With Negative Saturation Magnetostriction to Vibration Power Generation

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摘要

Various materials with negative saturation magnetostriction were applied to a U-shaped unimorph device for vibration power generation using an inverse magnetostrictive effect. When an fcc Fe#x2013;Ni alloy with the positive saturation magnetostriction was attached as an inverse magnetostrictive material on the front side of a U-shaped frame, larger values of the open-circuit voltage $V_{mathrm {op}}$ were obtained in comparison with that of the frame core device without a sample. However, when an fcc Ni metal with the negative saturation magnetostriction was attached on the front side of the U-shaped frame, its $V_{mathrm {op}}$ value was almost the same as that of the frame core device. Larger $V_{mathrm {op}}$ values were obtained by attaching the fcc Ni metal on the back side of the U-shaped frame. Similar characteristics were observed in the devices using a bcc Fe metal and an hcp Co metal with negative saturation magnetostriction. Therefore, the back side setting is effective for the application of materials with negative saturation magnetostriction to the U-shaped unimorph device.

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