Accession Number:

AD0718958

Title:

Capacitive Electrocardiograph Electrodes.

Descriptive Note:

Technical rept.,

Corporate Author:

TEXAS UNIV AUSTIN ELECTRONICS RESEARCH CENTER

Report Date:

1970-09-04

Pagination or Media Count:

120.0

Abstract:

A discrete capacitive electrode system and a hybrid capactive sensor system were constructed and evaluated. Most of the fundamental characteristics of capactive electrodes were ascertained with a discrete component system because all of the system parameters could be varied easily. A hybrid capacitive sensor system evolved as the optimized version of the discrete capacitive electrode system. The principal component of all the capacitive electrodes was a silicon-silicon oxide half-capacitor. The half-capacitor and the skin formed a capacitor when the capactive electrode was pressed against the skin. The effective capacitance formed by the discrete capacitive electrodes and human skin was large enough to obtain adequate low-frequency response when large amplifier input resistances were used. Author

Subject Categories:

  • Biomedical Instrumentation and Bioengineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE