Gas sensors using correlation spectroscopy compatible with fibre-optic operation
This paper reviews methods for gas detection using real-time correlation spectroscopy. These methods involve using a gas sample in a reference cell as a matched optical filter to detect, preferentially, similar absorption spectra in a measurement cell. The methods all have the advantage of excellent...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
1993-03.
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| Subjects: | |
| Online Access: | Get fulltext |
| LEADER | 01058 am a22001333u 4500 | ||
|---|---|---|---|
| 001 | 78319 | ||
| 042 | |a dc | ||
| 100 | 1 | 0 | |a Edwards, H.O. |e author |
| 700 | 1 | 0 | |a Dakin, J.P. |e author |
| 245 | 0 | 0 | |a Gas sensors using correlation spectroscopy compatible with fibre-optic operation |
| 260 | |c 1993-03. | ||
| 856 | |z Get fulltext |u https://eprints.soton.ac.uk/78319/1/628.pdf | ||
| 520 | |a This paper reviews methods for gas detection using real-time correlation spectroscopy. These methods involve using a gas sample in a reference cell as a matched optical filter to detect, preferentially, similar absorption spectra in a measurement cell. The methods all have the advantage of excellent selectivity, even using broadband sources, and are suitable for remote detection over optical-fibre leads. Our previously published methods using pressure and Stark modulation are reviewed. In addition, our recent theoretical treatment of the methods is presented. Finally, we describe new atmospheric-pressure measurements of gases using the method of phase-modulation spectroscopy. | ||
| 655 | 7 | |a Article | |