|
KMID : 1137820180390020103
|
|
의공학회지
2018 Volume.39 No. 2 p.103 ~ p.108
|
|
|
The Effect and the Limitation of Driven-right-leg Ground on Indirect-contact ECG measurement
|
|
Lim Yong-Gyu
|
|
|
Abstract
|
|
|
|
This study reviews the common-mode noise model of indirect-contact ECG measurement which uses capacitive electrode and capacitive ground, and shows the reason of the large common-mode noise in indirect-contact ECG. And then, this study shows driven-right-leg ground in indirect-contact ECG measurement, and reviews how the driven-right-leg ground reduces the common-mode noise. This study then analyzes the relation between the effective area of the indirect-contact ground and the gain of the driven-right-leg circuit. This study introduces the output voltage saturation of the driven-right-leg circuit, which occurs frequently in indirect-contact ECG measurement with the condition of the high ground impedance. This study then shows the effect of the driven-right-leg circuit saturation on the common-mode noise.
|
|
|
KEYWORD
|
|
|
Indirect-contact ECG, Driven-right-leg, Common-mode noise, Capacitive electrode
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
 
|