Abstract
Traditional ECG acquisition system lacks for flexibility. To improve the flexibility of ECG acquisition system and the signal-to-noise ratio of ECG, a new ECG acquisition system was designed based on DAQ card and Labview and oversampling was implemented in Labview. And analog signal conditioning circuit was improved on. The result indicated that the system could detect ECG signal accurately with high signal-to-noise ratio and the signal processing methods could be adjusted easily. So the new system can satisfy many kinds of ECG acquisition. It is a flexible experiment platform for exploring new ECG acquisition methods.
Highlights
ECG acquisition has been a mature technology since Doctor Willam Enthoven in Holland detected human ECG firstly
To improve the flexibility of ECG acquisition system and the signal-to-noise ratio of ECG, a new ECG acquisition system was designed based on DAQ card and Labview and oversampling was implemented in Labview
To resolve the problem about flexibility, analog signal conditioning circuit is improved on and a new ECG acquisition system is developed with DAQ card and Labview
Summary
ECG acquisition has been a mature technology since Doctor Willam Enthoven in Holland detected human ECG firstly. ECG can be divided into regular ECG, body surface potential mapping, high frequency ECG, ventricular late potentials electrogram, surface Hisbundle electrogram and etc Their detection objects are all with low amplitude but distributing in different low frequency ranges [2]. Traditional ECG acquisition systems are designed according to different detection objects Their analog signal conditioning circuit including multistage amplifiers and filters focus on special object. To resolve the problem about flexibility, analog signal conditioning circuit is improved on and a new ECG acquisition system is developed with DAQ card and Labview. There has been detailed discussion about the use of oversampling in biopotential detection [1,7,8]
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