Journal of Sensors / 2009 / Article / Fig 9

Research Article

Remote System for Detection of Low-Levels of Methane Based on Photonic Crystal Fibres and Wavelength Modulation Spectroscopy

Figure 9

Gas chamber for test of the sensing system: (a) and (b) computer generated pictures; (c) and (d) photographs of the implemented gas chamber (the U-benches shown in (d) were used to test the WMS interrogation technique).

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