Title :
Photodetector size considerations in the design of a noninvasive reflectance pulse oximeter for telemedicine applications
Author :
Pujary, C. ; Savage, M. ; Mendelson, Y.
Author_Institution :
Dept. of Biomed. Eng., Worcester Polytech. Inst., MA, USA
Abstract :
Low power management without compromising signal quality is a key requirement in the optimal design of a wearable pulse oximeter. This paper investigates the advantage gained by using a photodetector with a larger active area. Preliminary in vivo experiments have demonstrated that by increasing the area of the photodetector it is possible to reduce the overall power requirement of a wireless sensor intended for telemedicine applications.
Keywords :
biomedical transducers; blood; light emitting diodes; oximetry; oxygen; photodetectors; reflectivity; telemedicine; LED; O2; active area; noninvasive reflectance pulse oximeter design; optimal design; overall power requirement; photodetector size; signal quality; telemedicine applications; wearable pulse oximeter; wireless sensor; Energy management; Light emitting diodes; Optical amplifiers; Photodetectors; Quality management; Reflectivity; Sensor arrays; Telemedicine; Testing; Wearable sensors;
Conference_Titel :
Bioengineering Conference, 2003 IEEE 29th Annual, Proceedings of
Print_ISBN :
0-7803-7767-2
DOI :
10.1109/NEBC.2003.1216035
