TFG2900A Series Function/Arbitrary Waveform Generator Users’ Guide
Suin Instruments Co., Ltd
46
3.13.2 Harmonic order
: Harmonic order defines that harmonic frequency is multiple of
fundamental frequency. It must be positive integer. Harmonic order is set to 1, that’s fundamental
wave. Harmonic synthesis function actually is linear superposition of N-th Sine. You can set n-th
harmonic randomly, even without fundamental wave. Please pay attention that harmonic
frequency can’t exceed the upper frequency limits of device.
3.13.3 Harmonic phase
: Harmonic phase means harmonic’s start phase. If harmonic phase is
different, the synthesized arbitrary waveform will be different.
3.13.4 Harmonic amplitude
: Harmonic amplitude means it’s amplitude value. If harmonic
amplitude is set to 0, this harmonic will not affect. The amplitude of each harmonic could be set
randomly. If the amplitude value of final synthesized arbitrary waveform exceeds the amplitude
limits of device, the complete waveform could be shown in the graphic interface but amplitude
limiting will occur when output waveform.
3.13.5 Harmonic Sequence:
In order to synthesize a harmonic, you should load a harmonic
sequence list, each sine in this list could have different frequency, amplitude and phase. For
example, we use fundamental wave and 2-harmonic to synthesize a harmonic, with the harmonic
sequence list as follows:
Harmonic Order
Harmonic phase
Harmonic amplitude
1
0.0°
7.0Vpp
2
90.0°
3.0Vpp
Operation steps are as follows:
Press
〖
Order
〗
, and set to 1, that’s fundamental wave.
No.1 harmonic’s default phase is 0, so there is no need to set it.
Press
〖
Ampl
〗
, and set it to 7Vpp.
