Single Channel EEG Test System | User Manual
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2.5 Description of Functional groups
2.5.1 Main function (main waveform)
This group allows the operator to select the main waveform to be used in the test, from
the following:
Waveform
type
Description
Sample waveform
Sine
Basic sine wave, according to
the amplitude (mVpp) and
frequency (Hz).
Triangle
Basic triangle wave, according
to the amplitude (in mVpp)
and frequency (Hz).
Square
Basic square wave, according
to the amplitude (in mVpp)
and frequency (Hz).
Rectangle
pulse
A rectangular pulse, according
to the amplitude setting,
pulse width and pulse
repetition rate (frequency,
Hz).
Triangle
pulse
A triangle pulse, according to
the amplitude setting, base
(pulse) width and pulse
repetition rate (frequency,
Hz).
Hysteresis
Exponential waveform, used
for hysteresis test (set
amplitude to ±0.5mV, time
constant 50ms, adjustable).
EDF File
Manager,
Load
Waveforms
A range of stored waveforms
including: (1) load waveform
and (2) load PhysioNet
database through internet,
then play.
For these waveforms, the
amplitude and frequency
settings have no effect.