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 language | English |
|---|---|
| Title of host publication | Conference Record - IEEE Instrumentation and Measurement Technology Conference |
| Publisher | IEEE |
| Pages | 2364-2367 |
| Number of pages | 4 |
| ISBN (Print) | 0780393600, 9780780393608 |
| DOIs | |
| Publication status | Published - 1 Dec 2006 |
| Event | IMTC'06 - IEEE Instrumentation and Measurement Technology Conference - Sorrento, United Kingdom Duration: 24 Apr 2006 → 27 Apr 2006 |
Conference
| Conference | IMTC'06 - IEEE Instrumentation and Measurement Technology Conference |
|---|---|
| Country/Territory | United Kingdom |
| City | Sorrento |
| Period | 24/04/06 → 27/04/06 |
Keywords
- Bragg grating
- FPGA
- Strain sensor