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Rev Sci Instrum. 2010 Mar;81(3):033909. doi: 10.1063/1.3356980.

High resolution magnetostriction measurements in pulsed magnetic fields using fiber Bragg gratings.

Author information

1
Max Planck Institute for the Chemical Physics of Solids, 01187 Dresden, Germany.

Abstract

We report on a new high resolution apparatus for measuring magnetostriction suitable for use at cryogenic temperatures in pulsed high magnetic fields which we have developed at the Hochfeld-Magnetlabor Dresden. Optical fiber strain gauges based on fiber Bragg gratings are used to measure the strain in small (approximately 1 mm) samples. We describe the implementation of a fast measurement system capable of resolving strains in the order of 10(-7) with a full bandwidth of 47 kHz, and demonstrate its use on single crystal samples of GdSb and GdSi.

PMID:
20370194
DOI:
10.1063/1.3356980

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