Design on Interferometric Sensor Demodulation System of OMAP-Based Asymmetrical 3x3 Coupler Output

Feng Wang; Jin Hai Wang; Chun Hua Wei

doi:10.4028/www.scientific.net/AMR.468-471.911

Paper Titles

Design for Low Power Loss HART Transducer
p.891

Designing and Simulation of a Multi-Direction Tiny Force Switch
p.895

Design of a Handheld Terminal which Has Encryption and Decryption Function
p.899

Design of Width Measuring Instrument for Needle Roller Bearing without Inner Ring
p.907

Design on Interferometric Sensor Demodulation System of OMAP-Based Asymmetrical 3x3 Coupler Output
p.911

Robust Fault Detection for Nonlinear Systems with Distributed Delays
p.916

Fingerprint Identification System Based on DSP
p.920

Experimental Study of Electrical Discharge Grinding Honeycomb Tori
p.924

Mitsubishi FA-Based Solar Photovoltaic Tracking Control System
p.928

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 468-471Design on Interferometric Sensor Demodulation...

Design on Interferometric Sensor Demodulation System of OMAP-Based Asymmetrical 3x3 Coupler Output

Abstract:

Based on the asymmetry characteristic of 33 coupler output signal, the improved demodulation arithmetic of 3x3 coupler was studied and deduced. To satisfy the requirement of fiber-optic sensor for real time, high accuracy and net work processing, a design method for embedded signal processing based on dual-core microprocessor OMAP is provided. The results of the experiments show that the system can meet the requirements of processing accuracy and real-time property and it has very high practical value.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Advanced Materials Research (Volumes 468-471)

Pages:

911-915

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.468-471.911

Citation:

Cite this paper

Online since:

February 2012

Authors:

Feng Wang, Jin Hai Wang, Chun Hua Wei

Keywords:

Asymmetric 3×3 Coupler, Interferometric Sensor, OMAP, Phase Demodulation

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] QU she-sheng. The technology of signal detection in Fiber-optical interferometer.[J]. Applied Optics, 2000, 2l(4):29-34.

Google Scholar

[2] PEI Ya-peng, ANG Jun, UAN Li-bo. Principle of Fiber Optic Interferometric Sensors and Their Phase Demodulation Techniques [J]. Optics & Optoelectronic Technology, 2005,3(3):17-21.

Google Scholar

[3] Brown D A, Cameron C B, Keolian R M. A Symmetric 3×3 Coupler Based Demodulator for Fiber Optic Interferometric Sensors[J]. SPIE, 1991, 20(2):1584-1590.

DOI: 10.1117/12.50954

Google Scholar

[4] Dong ZHANG Xiaohui. Demodulation for phase shifted grating sensor by interferometer based 3×3 coupler[J].Chinese Journal of Sensor and Actuator, 2004, 17(3):460-462, 452．

Google Scholar

[5] ZHANG Cheng, WANG Jin-hai, CHEN.Design of demodulation system based on asymmetry 3×3 interferometric sensors [J]. Opto-Electronic Engineering, 2007, 11:135-140.

Google Scholar