A method for controlling the condition of permanent magnets based on solution of the problem of harmonic balance and full-scale and model tests is suggested. The method consists in determination of an unknown characteristic of a permanent magnet from the known form of current passing through an inductor system and from the form and amplitude of the line voltage in the inductor system. The method makes it possible to determine the magnetic characteristic of the permanent magnet with an error not exceeding 3%. The advantage of the method is the possibility of its application for nondestructive inspection of permanent magnets.
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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 9, pp. 43 – 45, September, 2019.
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Lankin, A.M., Lankin, M.V. & Lankin, I.M. Use of the Method of Harmonic Balance for Controlling the Condition of Permanent Magnets. Met Sci Heat Treat 61, 569–571 (2020). https://doi.org/10.1007/s11041-020-00463-x
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DOI: https://doi.org/10.1007/s11041-020-00463-x