Software Design of FBG Temperature Demodulation System Based on Wavelet Denoising

Author

Hu Wen-xia ; Wan Sheng-peng ; Zhang Hui-lian

Author_Institution

NIAT, Nanchang Hangkong Univ., Nanchang, China

fYear

2011

fDate

16-18 May 2011

Firstpage

1

Lastpage

4

Abstract

A principle of Fiber Bragg Grating wavelength demodulation system based on DSP was elaborated.Using specturm rebuilding scheme based on wavelet denoising to improve wavelength detection accuracy, while the dealing process of specturm rebuilding is simulated by MATLAB and the result is discussed. The design of VC++ applications can realize demodulation of the wavelength information collected by DSP in using of a key. Finally, a method of mixed programming using VC++ and MATLAB was presented to complete Specturm rebuilding. The experiment indicates that the software functions are effective,and the precision of the measurement can reach to 0.1°C.

Keywords

Bragg gratings; C++ language; fibre optic sensors; mathematics computing; optical information processing; optical modulation; FBG temperature demodulation; MATLAB; VC++ applications; digital signal processing; fiber Bragg grating; software design; specturm rebuilding scheme; wavelength demodulation system; wavelength detection; wavelet denoising; Demodulation; Fiber gratings; MATLAB; Noise reduction; Temperature sensors;

fLanguage

English

Publisher

ieee

Conference_Titel

Photonics and Optoelectronics (SOPO), 2011 Symposium on

Conference_Location

Wuhan

ISSN

2156-8464

Print_ISBN

978-1-4244-6555-2

Type

conf

DOI

10.1109/SOPO.2011.5780384

Filename

5780384