Optimum frequency selection in multifrequency interferometry

被引：163

作者：

Towers, CE ^{[1
]}

Towers, DP ^{[1
]}

Jones, JDC ^{[1
]}

机构：

[1] Heriot Watt Univ, Sch Engn & Phys Sci, Edinburgh EH14 4AS, Midlothian, Scotland

来源：

OPTICS LETTERS | 2003年 / 28卷 / 11期

关键词：

D O I：

10.1364/OL.28.000887

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

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. (C) 2003 Optical Society of America.

引用

页码：887 / 889

页数：3

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