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Optics Letters

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  • Vol. 28, Iss. 11 — Jun. 1, 2003
  • pp: 887–889

Optimum frequency selection in multifrequency interferometry

Catherine E. Towers, David P. Towers, and Julian D. C. Jones  »View Author Affiliations


Optics Letters, Vol. 28, Issue 11, pp. 887-889 (2003)
http://dx.doi.org/10.1364/OL.28.000887


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Abstract

We describe a novel technique for measurement of absolute order of interference in multifrequency interferometry. An optimization criterion is introduced that leads to frequency selection formulations that are optimized with respect to the minimum number of frequencies required for achieving the maximum target dynamic range. The method is generalized to N frequencies and gives a definition of measurement reliability. We demonstrate the technique by means of coherent fringe projection for nonintrusive, full-field profilometry. Experimental data for three frequencies are presented.

© 2003 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(100.2650) Image processing : Fringe analysis
(120.3180) Instrumentation, measurement, and metrology : Interferometry

Citation
Catherine E. Towers, David P. Towers, and Julian D. C. Jones, "Optimum frequency selection in multifrequency interferometry," Opt. Lett. 28, 887-889 (2003)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-28-11-887

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