magnetostrictor

magnetostrictor

[mag¦nēd·ō¦strik·tər]
(electromagnetism)
A device for converting electric oscillations to mechanical oscillations by employing the property of magnetostriction.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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Other materials couple strain with magnetic fields (magnetostrictors) or with temperature (SMAs).