Abstract:

This article describes the characteristics and prospects of modern typical ECG monitor.In view of the high impedance,small amplitude and low frequency characteristics of common ECG,the ECG monitor consists of the ECG acquisition module,amplifier module,filter module and processing module.ECG acquisition module and amplifier module are usually determined by the Input Requirements of filter module and processing module.There usually exist large common mode interference signals in the circuits and processing module can not completely filter out the interference signals,so the modern ECG monitor usually use digital filter as a filter module.Processing module generally uses common or embedded computer.The future trends of ECG monitor will be miniaturization,intelligent detection,information diversity and remote diagnosis.

Key words: ECG monitor;prospects module;Interence signal