Study on Measurement Errors of Position Sensor with Two-Dimension Holographic Variable Line-Space Plane Gratings

Author

Lou, Jun ; Liu, Bin ; Fu, Shao J.

Author_Institution

Nat. Synchrotron Radiat. Lab., Univ. of Sci. & Technol. of China, Hefei

fYear

2006

fDate

18-21 Jan. 2006

Firstpage

1018

Lastpage

1020

Abstract

In recent years, a new fiber optic position sensing technology with holographic variable line-space (VLS) plane grating is developed. The period of VLS plane grating is about less than 10 micron. The grooves of the holographic VLS plane grating are not straight in general. Due to the grooves bend of 2-D holographic VLS plane gratings, measurement errors of the position sensor are inevitable when the scanning direction of a position sensor isn´t in the symmetry axis of a VLS plane grating. This work briefly describes the theoretical background to the position sensor concept and the geometry theory of holographic VLS gratings. We report a theoretical analysis of the measurement errors in two basic cases: translation deviation and rotation deviation. The proposed method has been applied to examples of computer simulation. The results obtained are quite noteworthy.

Keywords

fibre optic sensors; geometry; measurement errors; position measurement; computer simulation; geometry theory; measurement errors; position sensor; rotation deviation; scanning direction; translation deviation; two-dimension holographic variable line-space plane gratings; Computer simulation; Diffraction gratings; Equations; Fiber gratings; Holography; Measurement errors; Optical fiber sensors; Optical fibers; Optical sensors; Sensor systems; VLS grating; measurement error; position sensor;

fLanguage

English

Publisher

ieee

Conference_Titel

Nano/Micro Engineered and Molecular Systems, 2006. NEMS '06. 1st IEEE International Conference on

Conference_Location

Zhuhai

Print_ISBN

1-4244-0139-9

Electronic_ISBN

1-4244-0140-2

Type

conf

DOI

10.1109/NEMS.2006.334602

Filename

4135119