Study on automatic gain control method of pulse oxygen saturation measured
- VernacularTitle:血氧饱和度检测中自动增益控制方法的研究
- Author:
Wei YU
;
Ning ZHANG
;
Xiang YAO
;
Qinkai DENG
- Publication Type:Journal Article
- Keywords:
oxygen saturation;
automatic gain control;
photoplethysmograph;
MSP430 microcomputer
- From:
Chinese Medical Equipment Journal
1989;0(02):-
- CountryChina
- Language:Chinese
-
Abstract:
The automatic gain control circuit is designed on the basis of MSP430F149 microcomputer with the chopper amplifier, and then continuous stepless regulation of pulse wave signal is fulfilled. Thus individual variation -induced problems are eliminated such as signal baseline drift and saturation. With this circuit, medical instruments can be portable and low-power-consumption.
