An FPGA based measurement system for a Fibre Bragg Grating (FBG) strain sensor

Oleg Uzenkov, Peter Lee, D. Webb

Research output: Chapter in Book/Report/Conference proceedingConference publication

Abstract

This paper presents an FPGA based measurement system used to measure the output from a fibre based Bragg grating strain sensor. The system is able to monitor the output of up to 10 demultiplexed light sources generated by the Bragg grating sensor and separated using a minaturised monochromator. The Centroid (C) of the light sources are measured using a 2048 pixel linear CCD array controlled by a Xilinx FPGA. The system scans the linear array at a rate of 2 MHz and is able to obtain sub-pixel resolution which equates resolution of 1 microstrain. The control circuit is implemented using less than 58% of the logic resources on an XCS40 device.

Original languageEnglish
Title of host publicationConference Record - IEEE Instrumentation and Measurement Technology Conference
PublisherIEEE
Pages2364-2367
Number of pages4
ISBN (Print)0780393600, 9780780393608
DOIs
Publication statusPublished - 1 Dec 2006
EventIMTC'06 - IEEE Instrumentation and Measurement Technology Conference - Sorrento, United Kingdom
Duration: 24 Apr 200627 Apr 2006

Conference

ConferenceIMTC'06 - IEEE Instrumentation and Measurement Technology Conference
CountryUnited Kingdom
CitySorrento
Period24/04/0627/04/06

Keywords

  • Bragg grating
  • FPGA
  • Strain sensor

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