Fig. 10From: Mixed-gas CH4/CO2/CO detection based on linear variable optical filter and thermopile detector arraySpectral response of CH4 (a), CO (b), and CO2 (c) at different concentrations; Spectral response histogram of mixed gases based on CH4/800 ppm, CO2/500 ppm, and CO/800 ppm (d); Linear dependence of output voltage on gas concentration (e)Back to article page