Analogue step-by-step DC component eliminator for 24-hour PPG signal monitoring.
For applications where PPG signal AC component needs to be measured without disturbances in its shape and recorded digitally with high digitalization accuracy, the step-by-step DC component eliminator is developed. This paper describes step-by-step DC component eliminator, which is utilized with analogue comparator and operational amplifier. It allows to record PPG signal without disturbances in its shape in 24-hours PPG signal monitoring system. The experiments with PPG signal have been carried out.
Pilt
Kristjan
K
Department of Biomedical Engineering, Tallinn University of Technology, Tallinn, 19086 Estonia. kristjan.pilt@gmail.com
Meigas
Kalju
K
Lass
Jaanus
J
Rosmann
Mart
M
Kaik
Jüri
J
D000669:Amplifiers, Electronic; D000703:Analog-Digital Conversion; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006801:Humans; D018670:Monitoring, Ambulatory / Q000295:instrumentation*; D017156:Photoplethysmography / Q000295:instrumentation*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*