Linear displacement measurement with a grating and speckle pattern illumination

被引：11

作者：

Perez-Quintian, Fernando ^{[1
]}

Lutenberg, Ariel ^{[1
]}

Rebollo, Maria A. ^{[1
]}

机构：

[1] Univ Buenos Aires, Fac Ingn, Lab Aplicac Opt, Buenos Aires, DF, Argentina

来源：

APPLIED OPTICS | 2006年 / 45卷 / 20期

关键词：

D O I：

10.1364/AO.45.004821

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a study of the variations of a speckle pattern passing through a grating that can be displaced. This study is described theoretically by a simple model based on the scalar diffraction theory in the Fresnel zone. The intensity correlation of the modified speckle as a function of the grating displacement is obtained and compared with experimental results. The possibilities of metrological applications in optical encoders are suggested. (C) 2006 Optical Society of America.

引用

页码：4821 / 4825

页数：5

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