The Computer-based electrocardiograph can be used for measuring, viewing, saving and printing ECGs.
The ECG attachment detects and amplifies ECG signals from the skin surface. The digital signal is transmitted to a PC by USB 2.0 interface. All the procedures of recording, viewing, and manipulating with the signals are performed on a PC. Working with ECG Control (the program for a PC) doesn’t require any special skills. It has a user-friendly interface and embedded hints which help to familiarize with the system easily.
We showed the technical characteristics of the USB electrocardiograph below.
|Recorded leads||I, II, III (standard limb leads), avR, avL, avF (augmented limb leads)|
|ADC Sampling rate||3 kHz per a measuring channel|
|ADC resolution||10 bits|
|Full scale measurement range||–2 to 2 mV|
|ADC voltage resolution||3.9 mV|
|Time constant||3 sec|
|Digital filter settings||adjustable (3 modes of working), default – 50 Hz and high harmonics|
|Common-mode rejection ratio||more than 100 dB|
|Communications protocol used for connection with PC||USB 2.0|
|Power supply||from USB port|
|Power consumption||200 mW|