The Reliability Analysis and Design of ECG Signal Acquisition Circuit Based on Pspice

摘要

In connection with the weak, low frequency, signal instability, randomness strong and vulnerable to interference and other major features of the ECG signal, designed a multi-polar amplification, filtering, high input impedance, high signal to noise ratio of the acquisition circuit. Analyzed the system characteristics distribution of the circuit in the electronic components within the tolerance range, and proved the system reliability from the theoretical point of view and practical point of view, and provided the reliability of technical support of system from theoretical analysis to practical realization.