Date of Graduation
Master of Science in Electrical Engineering (MSEE)
Vijay K. Varadan
Roy C. Mccann
Second Committee Member
Simon S. Ang
Applied sciences, Electrical engineering
Measuring Oxygenation of blood (SaO2) plays a vital role in patient’s health monitoring. This is often measured by pulse oximeter, which is standard measure during anesthesia, asthma, operative and post-operative recoveries. Despite all, monitoring Oxygen level is necessary for infants with respiratory problems, old people, and pregnant women and in other critical situations.
This paper discusses the process of calculating the level of oxygen in blood and heart-rate detection using a non-invasive photo plethysmography also called as pulsoximeter using the MSP430FG437 microcontroller (MCU). The probe uses infrared lights to measure and should be in physical contact with any peripheral points in our body. The percentage of oxygen in the body is worked by measuring the intensity from each frequency of light after it transmits through the body and then calculating the ratio between these two intensities.
Venkatesan Gomathy, M. (2017). Development of an Oxygen Saturation Monitoring System by Embedded Electronics. Theses and Dissertations Retrieved from https://scholarworks.uark.edu/etd/1944