En ocasiones podemos ver en los espectros de ruido, bandas que destacan en la zona de absorción de la humedad (bandas de combinación en torno a 1940 nm y el primer sobretono en torno a 1450 nm), dicho sintoma nos indica que el equipo esta expuesto a una humedad ambiental alta. Es importante tomar medidas para reducir dicha humedad (debida a vapor de agua) y reducir las bandas hasta que sean lo menor posibles o que desaparezcan. Cuando queremos analizar constituyentes con muy baja concentración, la relación señal ruido del equipo debe de ser muy buena, y este tipo de espectros de ruido no contribuye a ello.
Sometimes we can see in the noise spectra, bands that stand in the absorption zone of moisture (combination bands around 1940 nm and the first overtone around 1450 nm), this symptom indicates that the equipment is exposed to a high humidity. It is important to take steps to reduce this moisture and reduce this water vapour bands until they are as small as possible or even disappear. When we analyze constituents with very low concentrations, the Signal to Noise Ratio of the instrument must be good, and this type of noise spectra does not contributes to this.
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Sometimes we can see in the noise spectra, bands that stand in the absorption zone of moisture (combination bands around 1940 nm and the first overtone around 1450 nm), this symptom indicates that the equipment is exposed to a high humidity. It is important to take steps to reduce this moisture and reduce this water vapour bands until they are as small as possible or even disappear. When we analyze constituents with very low concentrations, the Signal to Noise Ratio of the instrument must be good, and this type of noise spectra does not contributes to this.
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