1.
Chinese Journal of Medical Instrumentation
;
(6): 189-196, 2013.
Article
in Chinese
| WPRIM
| ID: wpr-264238
ABSTRACT
This paper presents a new pulse oximeter used to low perfusion at 0.125% and wide oxygen saturation range from 35% to 100%. In order to acquire the best PPG signals, the variable gain amplifier(VGA) is adopted in hardware. The self-developed auto-correlation modeling method is adopted in software and it can extract pulse wave from low perfusion signals and remove motion artifacts partly.