An FPGA-based demodulation system for fiber Bragg grating sensing

Yongqian Li; Haitao He; Guozhen Yao

doi:10.1117/12.869810

9 November 2010 An FPGA-based demodulation system for fiber Bragg grating sensing

Yongqian Li, Haitao He, Guozhen Yao

Proceedings Volume 7853, Advanced Sensor Systems and Applications IV; 78532F (2010) https://doi.org/10.1117/12.869810
Event: Photonics Asia 2010, 2010, Beijing, China

Abstract

This paper introduces the principle of fiber Bragg grating (FBG) sensor, designs and realizes a compact wavelength demodulation system for FBG sensing using a Fabry-Perot (F-P) filter. FPGA is adopted as a main controller to control a D/A converter to produce a sawtooth wave for driving the F-P filter, and to design the data acquisition circuit for collecting the output signals of photoelectric detector. The collected data is processed after transmitting to PC through the data transmission circuit, and then the demodulation of FBG wavelength is completed finally. This compact FBG wavelength demodulation system is expected to have wide applications in on-line monitoring of electric power equipment and large structures.

Citation Download Citation

Yongqian Li, Haitao He, and Guozhen Yao "An FPGA-based demodulation system for fiber Bragg grating sensing", Proc. SPIE 7853, Advanced Sensor Systems and Applications IV, 78532F (9 November 2010); https://doi.org/10.1117/12.869810

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available