Calibration of a gas sensor based on cross-correlation spectroscopy
Vargas-Rodríguez, E., Rutt, H.N., Rojas-Laguna, R. and Alvarado-Mendez, E (2008) Calibration of a gas sensor based on cross-correlation spectroscopy. Journal of Optics A: Pure and Applied Optics, 10, (10), 104018-[10pp]. (doi:10.1088/1464-4258/10/10/104018).
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Description/Abstract
In this work an analysis of some calibration effects in the overall response of a gas sensor based on cross-correlation spectroscopy is presented. For this analysis we considered that an FPI with long cavity length (>500 μm) acting as a modulator and a pyroelectric detector are used. Moreover we assumed that the cavity length of the FPI is scanned by driving a PZT with a triangular waveform. Here it is shown that the harmonic composition of the overall sensor response can be affected by small FPI cavity length differences. These effects are due to the pyroelectric responsivity and the triangular waveform used to scan the PZT. Moreover it is shown that the effects over the harmonic composition can be used to calibrate the sensor. Finally simulation results and experimental measurements are provided.
| Item Type: | Article |
|---|---|
| ISSNs: | 1464-4258 (print) 1741-3567 (electronic) |
| Keywords: | pyroelectric detector, responsivity, harmonic, piezoelectric, cavity length scan, calibration |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Faculty of Physical Sciences and Engineering > Optoelectronics Research Centre |
| Item ID: | 265962 |
| Date Deposited: | 18 Jun 2008 14:35 |
| Last Modified: | 26 Apr 2013 04:18 |
| Contributors: | Vargas-Rodríguez, E. (Author) Rutt, H.N. (Author) Rojas-Laguna, R. (Author) Alvarado-Mendez, E (Author) |
| Date: | October 2008 |
| Status: | Published |
| Publisher: | IOP Publishing |
| URI: | http://eprints.soton.ac.uk/id/eprint/265962 |
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