38
6.
Use the knob to navigate to the file and either press the Recall softkey or press the knob
to load the waveform.
If the waveform is sent to the unit using EasyWave, the file will be saved to the internal
memory. If it is loaded to a USB flash drive, then the waveform can be recalled from the
USB flash drive.
Configure Harmonic Generator
Configure the built-in harmonic generator to output harmonics with a specified order,
amplitude and phase. This feature follows the Fourier series, as explained below.
According to the Fourier series, a periodic time domain waveform is the superposition of a
series of sine waveforms as shown in the equation below:
Generally, the component with f
1
is called the fundamental frequency. A
1
is the fundamental
waveform's amplitude and
φ
1
is the fundamental waveform phase. The frequencies of the
other components (called harmonics) are all integer multiples of the fundamental frequency.
Components whose frequencies are odd multiples of the fundamental waveform frequency are
called odd harmonics and components whose frequencies are even multiples of the
fundamental waveform frequency are called even harmonics.
To select and configure the Harmonics Generator, follow the steps below:
1.
Press Waveforms button.
2.
Press Sine softkey.
3.
Press the Harmonic softkey to toggle the function on or off.
4.
If the “On” option is pressed, then the Harmonic Parameter softkey will be available.
5.
Press Harmonic Parameter to enter the following screen.
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