Title :
A Circuit for Contact Monitoring in Electrocardiography
Author_Institution :
Institute of Technology, University of Uppsala
fDate :
5/1/1982 12:00:00 AM
Abstract :
A circuit for contact impedance monitoring in ECG is presented. An ac current in the same frequency band as the ECG signal is used for the measurement. This makes the measurement independent of polarization potentials and gives the correct weight to the impedances in the skin-to-electrode junction. The measurement of the contact impedance is made continuously during ECG monitoring and causes no interference in the ECG signal.
Keywords :
Biomedical measurements; Counting circuits; Electrocardiography; Electrodes; Impedance; Instruments; Interference; Light emitting diodes; Patient monitoring; Pulse generation; Electrocardiography; Electrodes; Electronics, Medical; Galvanic Skin Response; Humans; Mathematics;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
DOI :
10.1109/TBME.1982.324905
