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The small angle magnetization rotation (SAMR) method for measuring the magnetostriction λ s in soft magnetic amorphous ribbons is compared with results as obtained by a capacitance method, by a transversal susceptibility method, from strain gauge measurements but also estimating λ s from the stress dependence of the hysteresis loop. There exist differences which can be explained either by a not well defined magnetization state or also due to the averaging procedure.
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Polak et al. (1994) studied this question.
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