PHASE-SHIFTING - 6-SAMPLE SELF-CALIBRATING ALGORITHM INSENSITIVE TO THE 2ND-HARMONIC IN THE FRINGE SIGNAL

被引：32

作者：

ZHAO, B ^{[1
]}

SURREL, Y ^{[1
]}

机构：

[1] ECOLE MINES ST ETIENNE, DEPT MECH & MAT ENGN, F-42023 ST ETIENNE, FRANCE

来源：

OPTICAL ENGINEERING | 1995年 / 34卷 / 09期

关键词：

PHASE-SHIFTING ERROR; NONSINUSOIDAL FRINGE SIGNAL; SELF-CALIBRATING ALGORITHM;

D O I：

10.1117/12.211676

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The presence of harmonics in the fringe signal profile have different effects in the measured phase, depending on the algorithms used. The simultaneous presence of phase-shift error and harmonics will generate a phase error for all of the previous algorithms as well as for the standard N-sample algorithm, and make the problem more complicated. This paper presents a six-sample algorithm, which is almost insensitive to the phase-shift error, even if an important amount of second harmonics is present in the fringe signal.

引用

页码：2821 / 2822

页数：2