研究了非晶丝材磁致伸缩系数的小角转动测量方法,采用小角转动法(SAMR)测量了Co69.9Si12.5B9Fe5Cr3.5Mo0.1非晶合金丝感应电压的二次谐波信号随直流偏磁场、应力及驱动电流的变化关系,通过对测量条件的优化,测量了非晶丝感生各向异性场随应力的变化关系.得到Co69.9Si12.5B9Fe5Cr3.5Mo0.1非晶丝的磁致伸缩系数λs为1'10-7.
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