Fibre vibrometer with three-phase fringe-analysis

Johnson, M. and Delaporte, Y. (1993) Fibre vibrometer with three-phase fringe-analysis Optics Communications, 101, (1-2) (doi:10.1016/0030-4018(93)90312-S).


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A fiber-remoted, non-contact, optical surface-vibrometer which uses no source wavelength modulation is reported. Three-phase fringe sampling using a 3 X 3 fiber coupler and processing using a digital processor allow automatic multi-fringe unwrapping, sub-fringe interpolation and insensitivity to interferogram intensity and contrast variations. A noise-equivalent sensitivity of 50 µ.fringe/root. Hz is demonstrated.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1016/0030-4018(93)90312-S
ISSNs: 0030-4018 (print)
Related URLs:
ePrint ID: 78265
Date :
Date Event
Date Deposited: 11 Mar 2010
Last Modified: 26 Apr 2017 01:50
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