Signal-to-noise ratio in FT-IR measurements

• Autores: AP.E. Quintard, E. Abdelmounim, T. Merle
• Localización: Óptica pura y aplicada, ISSN-e 2171-8814, Vol. 35, Nº. 1, 2002, págs. 55-59
• Idioma: español
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• Resumen

  • The influence of different useful recording parameters in Fourier transform infrared spectra,on the signal-to-noise ratio is considered. We particularly studied the evolution of the signal to noise ratio with the spectral resolution, the transmission of different samples, the intensity of thebackground and the number of scans. This will allow an optimal extraction of spectralinformation of investigated samples. The noise was measured, through a surface determination, making use of the classicalintegrated software, and the signal evaluated from well calibrated samples. Results are in good agreement with a theoretical proposed relation.