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A new method which eliminates some disadvantages of the Epstein method has been developed for the rapid measurement of core losses and permeabilities at 50 or 60 Hz of single-sheet specimens. It is shown that the instrument has the following performance: 1) good correlation of the measured value with Epstein testing, 2) high stability, 3) simplicity of operation, and 4) use of a wide single-sheet specimen.
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Yamamoto et al. (1974) studied this question.
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