The signal-to-noise ratio measurement in chloroform detection in the presence of krypton buffer gas by laser photoacoustic method

Abstract

The signal-to-noise ratio is a measure used in engineering and science that compares the level of a desired signal to the level of background noise. This parameter is one of the main features of the spectrometer devices. In this experimental study, a homemade photoacoustic layout used to detect chloroform vapour in the presence of krypton buffer gas