A virtual instrument for the electrocardiograph

摘要

The implementation of the electrograph (E. C. G. machine) on the personal computer (PC) is described as a virtual instrument. The only external hardware is the e. c. g. preamplifier board. The interface is via the printer port. All controls are via keyboard and the display is similar to the normal e. c. g. recorder. The instantaneous heart rate is also displayed. Alarm provision is also made feasible. This paves the way for an intelligent E. C. G. diagnosis using a PC.