Abstract

This paper studies the characteristics of ECG signal. In order to complete ECG signal acquisition, the electrocardiograph front-end circuit includes instrumentation amplifier circuit, high-pass filter circuit, 50 Hz notch circuits, four-pass amplification circuit and low-pass filter circuit. To drive subsequent circuit accurately recorded ECG signal, through the Multisim simulation verifies the feasibility of the circuit, which are verified availability through the experimental test.

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