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Magneto-optic linear-displacement sensor with high spatial resolution and low noise
Journal of Applied Physics
  • S. J. Lee, Iowa State University
  • Y. Melikhov, Iowa State University
  • David C. Jiles, Iowa State University
  • C.M. Park, Seonam University
  • H. Hauser, Vienna University of Technology
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A magneto-optic linear-displacement (MOLD) sensor is reported for measuring linear displacements of the surfaces of materials remotely. It is based on observation of temporal changes in the intensity of the reflected polarized light beam, which passes through a magneto-optic thin garnetfilm with controlled periodical displacement of one domain wall. The MOLD sensor allows observation of linear displacement of a material located remotely from the laser and detector with a spatial resolution of 4μm.

The following article appeared in Journal of Applied Physics 99 (2006): 08B301 and may be found at,

Copyright 2006 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
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American Institute of Physics
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S. J. Lee, Y. Melikhov, David C. Jiles, C.M. Park, et al.. "Magneto-optic linear-displacement sensor with high spatial resolution and low noise" Journal of Applied Physics Vol. 99 Iss. 8 (2006) p. 08B301
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