Simple signal processing method for pulse oximetry

This paper presents a simple signal processing method used in the pulse oximetry laboratory kit. The laboratory kit was designed for research and educational purposes in the medical equipment oriented areas. The presented device allows to show not only the oxygen saturation and the heart rate as a standard oximeter, but also the whole oximetry signals. It means there is a possibility to study the impact of set-up parameters and ambient surroundings on the measured values. This paper also includes the principal description of the laboratory kit.