Ultra-Low Power Photoplethysmography (PPG) Sensors: A Methodological Review

Ultra-Low Power Photoplethysmography (PPG) Sensors: A Methodological Review

PPG sensors are used to accurately, instantaneously, and non-invasively measure vital signs to provide a real-time indication of overall physical health and long-term well-being. Achieving long-term continuous monitoring is an important requirement to increase user safety and diagnostic accuracy. PP...

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Veröffentlicht in:IEEE sensors journal 2023-06, p.1-1
Hauptverfasser: Ebrahimi, Zobair, Gosselin, Benoit
Format: Artikel
Sprache:eng
Schlagworte:
aggressive duty cycling
compressive sampling
DC component
event-driven sampling
Heart rate
LED
LED driver
Light emitting diodes
light-to-digital converter (LDC)
Power demand
PPG
readout topologies
sampling schemes
Sensors
Signal to noise ratio
SNR
Topology
transimpedance amplifier (TIA)
Ultra-low-power
Voltage
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Zusammenfassung:PPG sensors are used to accurately, instantaneously, and non-invasively measure vital signs to provide a real-time indication of overall physical health and long-term well-being. Achieving long-term continuous monitoring is an important requirement to increase user safety and diagnostic accuracy. PPG sensors need a light-emitting diode (LED) with sufficient output power to detect the PPG signal, which consumes tens of mW. On the other hand, low AC/DC ratios of
ISSN:1530-437X
DOI:10.1109/JSEN.2023.3284818