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Updated: Jul 10, 2026

Extraction of the EPP Component from the Surface EMG
Published on: December 16, 2009
Analogue step-by-step DC component eliminator for 24-hour PPG signal monitoring
Kristjan Pilt1, Kalju Meigas, Jaanus Lass
1Department of Biomedical Engineering, Tallinn University of Technology, Tallinn, 19086 Estonia. kristjan.pilt@gmail.com
Abstract:
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.
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