J. Phys. IV France
Volume 129, October 2005
Page(s) 165 - 167

J. Phys. IV France 129 (2005) 165-167

DOI: 10.1051/jp4:2005129035

Contrastometric fiber optic elongation sensor

M. Szustakowski, N. Palka and W. Ciurapinski

Military University of Technology, Institute of Optoelectronics, Kaliski St. 2, 00-908 Warsaw, Poland

The elongation sensor bases on the contrast measurements in an unbalanced fiber optic Michelson interferometer with a $3 \times 3$ coupler and a semiconductor multimode laser. For 1-m long sensor we obtained 5-mm measuring range with $\pm 28$-$\mu$m uncertainty.

© EDP Sciences 2005

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