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软磁非晶态合金是具有较良好的磁性能的材料,故应用日趋广泛。它的磁晶各向导性常数为零,其磁致伸缩性的大小将直接影响磁性能,因此准确测定磁伸系数十分必要。目前,由轧制的非晶合金带的厚度通常在20～60μm范围。由于带薄,故不宜采用传统的磁伸系数测试方法。本文介绍利用在非晶合金带中沿带轴造成小角度磁矩偏转,通过对应力感生的单轴各向异性场的测量来求出饱和磁伸系数的方法。该方法操作简单,容易测出磁伸系数值,其测
Soft magnetic amorphous alloy is a material with good magnetic properties, so the application is more widely used. Its magnetocrystalline anisotropy constant is zero, its magnetostrictive size will directly affect the magnetic properties, so accurate determination of magnetostrictive coefficient is necessary. Currently, the thickness of the rolled amorphous alloy strip is usually in the range of 20 to 60 μm. Due to the thin, it is not appropriate to use the traditional method of testing magnetic coefficient. In this paper, the method of determining the coefficient of saturation magnetization using the measurement of the uniaxial anisotropy field induced by stress induced by small-angle magnetic moment deflection along the ribbon axis in an amorphous alloy ribbon is introduced. The method is simple and easy to measure the value of magnetostrictive coefficient