What are the advantages of the microLGD compared to NDIR detectors ?
Both NDIR and the microLGD monitor the absorption of infrared light by the target gas. NDIR detectors select the appropriate wavelength by filtering the light of a thermal light bulb through an interference filter. This filter has a spectral width of typically 100 nm around the chosen wavelength and thus, is orders of magnitude wider than the absorption bands fine structure that is used by the microLGD for cross-sensitivity-free measurements.
