Resumo

DUGARTE JEREZ, Nelson; MEDINA, Rubén  e  ROJAS, Rubén. Prototype development of a data acquisition system for ECG signal digitalization high resolution. INHRR [online]. 2012, vol.43, n.2, pp.27-35. ISSN 0798-0477.

Abstract - This paper reports the development of a data acquisition card for biomedical use. The project involves development of hardware and software. The hardware enables acquisition of 10 analog signals, at a rate of 2000 samples per channel per second (mps) and 12-bit resolution per sample. The application software was designed for visualizing and storing, in real time, the acquired signals. This project was performed aiming at developing proprietary technology, for simultaneous acquisition of 12 leads of the standard electrocardiogram (ECG) including high resolution (ECGAR) features. The acquisition card was designed as part of a larger project aiming at developing a high resolution electrocardiograph, incorporating advanced digital processing techniques for research about cardiovascular diseases such as the Chagas disease. The tests performed for this acquisition card show amplitude errors lower than 0.15 % and no loss of information during the communication with the computer. It was also found that the graphical representation of the acquired signals is of high quality for interpretation by cardiologists.

Palavras-chave : Scanning multichannel; high-resolution electrocardiogram (ECGAR); cardiovascular diseases.