Capacitive Electrocardiograph Electrodes.
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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 04, 1970
- Accession Number
- AD0718958
Entities
People
- F. B. Vogt
- H. L. Taylor
- Henry Grady Rylander Iii
- P. C. Richardson
Organizations
- University of Texas at Austin