High resolution interrogation technique based on linear photodiode array spectrometer for fiber Bragg grating Sensors - art. no. 65952C
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2007
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| Resumo |
A linear photodiode array spectrometer based, high resolution interrogation technique for fiber Bragg grating sensors is demonstrated. Spline interpolation and Polynomial Approximation Algorithm (PAA) are applied to the data points acquired by the spectrometer to improve the original PAA based interrogation method. Thereby fewer pixels are required to achieve the same resolution as original. Theoretical analysis indicates that if the FWHM of a FBG covers more than 3 pixels, the resolution of central wavelength shift will arrive at less than 1 pm. While the number of pixels increases to 6, the nominal resolution will decrease to 0.001 pm. Experimental result shows that Bragg wavelength resolution of similar to 1 pm is obtained for a FBG with FWHM of similar to 0.2 nm using a spectrometer with a pixel resolution of similar to 70 pm. A linear photodiode array spectrometer based, high resolution interrogation technique for fiber Bragg grating sensors is demonstrated. Spline interpolation and Polynomial Approximation Algorithm (PAA) are applied to the data points acquired by the spectrometer to improve the original PAA based interrogation method. Thereby fewer pixels are required to achieve the same resolution as original. Theoretical analysis indicates that if the FWHM of a FBG covers more than 3 pixels, the resolution of central wavelength shift will arrive at less than 1 pm. While the number of pixels increases to 6, the nominal resolution will decrease to 0.001 pm. Experimental result shows that Bragg wavelength resolution of similar to 1 pm is obtained for a FBG with FWHM of similar to 0.2 nm using a spectrometer with a pixel resolution of similar to 70 pm. zhangdi于2010-03-29批量导入 Made available in DSpace on 2010-03-29T06:06:07Z (GMT). No. of bitstreams: 1 2255.pdf: 252825 bytes, checksum: 91cb1447c24240c1d52d033825d86d02 (MD5) Previous issue date: 2007 SPIE Russia Chapter.; Russian Fdn Basic Res. Chinese Acad Sci, Inst Semicond, State Key Lab Integrated Optoelect, Beijing 100083, Peoples R China SPIE Russia Chapter.; Russian Fdn Basic Res. |
| Identificador | |
| Idioma(s) |
英语 |
| Publicador |
SPIE-INT SOC OPTICAL ENGINEERING 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA |
| Fonte |
Zhang, SW (Zhang, Songwei); Liu, YH (Liu, Yuhang); Li, F (Li, Fang) .High resolution interrogation technique based on linear photodiode array spectrometer for fiber Bragg grating Sensors - art. no. 65952C .见：SPIE-INT SOC OPTICAL ENGINEERING .Fundamental Problems of Optoelectronics and Microelectronics III丛书标题: PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) ,1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA ,2007,Pts 1 and 2 6595: C5952-C5952 Part 1-2 |
| Palavras-Chave | #光电子学 #fiber Bragg grating sensor #interrogation technique #SYSTEM |
| Tipo |
会议论文 |
