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Superluminescent diode coupled with etalon for measuring CH<inf>4</inf> and CO<inf>2</inf> in biogas
Date Issued
01-01-2015
Author(s)
Selvaraj, Ramya
Sulochana, K.
Indian Institute of Technology, Madras
Indian Institute of Technology, Madras
Abstract
Superluminescent diode based absorption spectroscopy is demonstrated for simultaneous measurement of CH4 and CO2 in biogas. A free space etalon is used to avoid interference from other gases and allow measurement with a low resolution spectrometer.