Title :
A Preamplifer for an Electrocardiograph Monitoring System
Author :
Tommerdahl, James B.
Author_Institution :
Res. Triangle Inst., Durham, N.C.
Abstract :
An approach to a simple, dependable ECG preamplifier designed primarily for use in the operating room is presented. The 60-cps interference is analyzed and a method of reducing this intereference by utilizing the isolation offered by transformer coupling is described. A prototype unit is constructed and tested, and operational characteristics of this unit are presented.
Keywords :
Circuits; Differential amplifiers; Electrocardiography; Electrodes; Interference elimination; Monitoring; Preamplifiers; Prototypes; Testing; Voltage;
Journal_Title :
Bio-Medical Electronics, IRE Transactions on
DOI :
10.1109/TBMEL.1961.4322852
