Magnetization Reversal of Multiple Amorphous Wires

正裕, 副田; 二郎, 山崎

doi:10.3379/jmsjmag.21.577

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2006

2008

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“…Among current achievements in BHD-induced pulses in terms of power, sensitivity, and compactness, small-size Barkhausen sensors have been implemented on three amorphous wires (diameter: 30 µm, length: 40 mm), using FeSiB wires combined with amorphous ribbons [4]. Here we report experimental results relevant to further possibilities for obtaining more powerful and compact pulse generator elements.…”

Section: Introductionmentioning

confidence: 99%

Synchronized reentrant flux reversal of multiple FeSiB amorphous wires having large output

Takajo

Yamasaki

2008

Elect Comm in Japan

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SUMMARYA technique to synchronize the reentrant flux reversal of the multiple magnetostrictive Fe 77.5 Si 7.5 B 15 amorphous wires was developed using a flux keeper of amorphous ribbons that contacted the wire ends. It is found that the characteristics of the reentrant flux take place respectively at almost the same time in the three Fe-Si-B amorphous wires with a diameter of 65 or 95 µm. This phenomenon can be explained by considering the strong magnetic coupling of wires and amorphous ribbon by stray field from each wire end. As a result, the magnitude of the induced voltage in the sense coil is increased in proportion to the multiplication of the number of wires.

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Section: Introductionmentioning

confidence: 99%