资料介绍
Pulse oximetry measurements require the use of one wavelength each side of the 805nm isobestic point on the absorption spectra of adult haemoglobin. The DC and background noise is subtracted out, and the pulsed signals are then scaled. Two common methods to determine SPO2 are calculated and lookup tables. Extensive over-sampling, filtering and signal processing are needed to eliminate noise such as movement artifacts from small signals.
我要上传