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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Description/Abstract

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 μfringe/ √ Hz is demonstrated.

Item Type: Article
ISSNs: 0030-4018 (print)
Related URLs:
Subjects: Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: University Structure - Pre August 2011 > Optoelectronics Research Centre
ePrint ID: 78265
Date Deposited: 11 Mar 2010
Last Modified: 27 Mar 2014 18:58
URI: http://eprints.soton.ac.uk/id/eprint/78265

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