Wearable Photoplethysmographic Sensors—Past and Present

Toshiyo Tamura, Yuka Maeda, Masaki Sekine, Masaki Yoshida
2014 Electronics  
Photoplethysmography (PPG) technology has been used to develop small, wearable, pulse rate sensors. These devices, consisting of infrared light-emitting diodes (LEDs) and photodetectors, offer a simple, reliable, low-cost means of monitoring the pulse rate noninvasively. Recent advances in optical technology have facilitated the use of high-intensity green LEDs for PPG, increasing the adoption of this measurement technique. In this review, we briefly present the history of PPG and recent
more » ... ments in wearable pulse rate sensors with green LEDs. The application of wearable pulse rate monitors is discussed.
doi:10.3390/electronics3020282 fatcat:76fbytrdqbgafdesgtfcbqk3de