We report a long-range optical methane sensor to enable remote detection of gas leaks from pipelines and other infra-structure. The system, based on back-scatter from a target surface (e.g. the ground around a pipeline), tuneable diode laser spectroscopy (TDLS) and a high power fibre Raman amplifier, can detect a 1 m cloud of methane with a concentration of 100ppm at a distance of 200m.
|Publication status||Unpublished - Dec 2008|
|Event||Photonics 2008: International Conference on Fiber Optics and Photonics - New Delhi, India|
Duration: 13 Dec 2008 → 17 Dec 2008
|Conference||Photonics 2008: International Conference on Fiber Optics and Photonics|
|City||New Delhi, India|
|Period||13/12/08 → 17/12/08|
- optical methane sensor
- remote gas detection
- gas leaks
- tuneable diode laser spectroscopy
- Raman amplifier
Johnstone, W., Duffin, K., & Mitchell, D. M. (2008). Remote gas detection using tunable diode laser spectroscopy with high power rare earth and raman fibre amplifiers. Paper presented at Photonics 2008: International Conference on Fiber Optics and Photonics, New Delhi, India, .