vPad-A1 OPERATORS MANUAL
4.2.6 Fetal ECG Signal
The Fetal ECG function simulates heart beat signals obtained from the ECG leads on a direct fetal probe.
Fetal ECG parameters are similar to NSR simulations as described in section 4.2.3, except that the Rate
setting has a more limited range, and the Mode setting is fixed.
4.2.7 Performance Waves
Performance Waves are a set of standard, periodic signals for testing the performance of an ECG
monitoring system, including transient response, frequency response, linearity and sensitivity.
Only the
Amplitude parameter is available for Performance Waves simulations. Rate and Mode settings are
meaningless for these types of waveforms, and
Artifact is not applied during performance tests.
Once Performance Waves is selected from the first dropdown list, the second dropdown menu provides a
list of specific waveforms, as shown below:
Pulse 30 BPM 60 ms Sine Wave 0.05 Hz Sine Wave 40 Hz
Pulse 60 BPM 60 ms Sine Wave 0.5 Hz Sine Wave 50 Hz
Square Wave 0.125 Hz Sine Wave 1 Hz Sine Wave 60 Hz
Square Wave 2 Hz Sine Wave 2 Hz Sine Wave 100 Hz
Square Wave 2.5 Hz Sine Wave 5 Hz Sine Wave 150 Hz
Triangle Wave 0.125 Hz Sine Wave 10 Hz Sine Wave 200 Hz
Triangle Wave 2 Hz Sine Wave 25 Hz
Triangle Wave 2.5 Hz Sine Wave 30 Hz
Manual Operation/Chapter 4 # Page 38
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