Wearable Photoplethysmographic Sensors—Past and Present

Electronics

Toshiyo Tamura²  Yuka Maeda¹  Masaki Sekine² 

[1] Faculty of Engineering, Information and Systems, University of Tsukuba/1-1-1, Tennodai, Tsukuba, Ibaraki 305-8573, Japan; E-Mail:;Osaka Electro-Communication University, Faculty of Biomedical Engineering /18-8, Hatsu-Cho, Neyagawa, Osaka 572-8530, Japan; E-Mails:

关键词: photoplethysmography;    pulse rate;    reflectance;    transmittance;    green light;    infrared light;    adaptive filter;    least mean square algorithm;   

DOI  :  10.3390/electronics3020282

来源: mdpi

【 摘 要 】

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 developments in wearable pulse rate sensors with green LEDs. The application of wearable pulse rate monitors is discussed.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.