User Manual 30
4.1 Overview
According to Fourier transform, time domain waveform is the superposition of a series of sine
waveforms as shown in the equation below:
Generally, component with f
1
frequency is called fundamental waveform, f
1
is fundamental
waveform frequency, A
1
is fundamental waveform amplitude and φ
1
is fundamental waveform
phase. The frequencies of other components (called harmonics) are all integral multiples of the
fundamental waveform frequency. Components whose frequencies are odd multiples of the
fundamental waveform frequency are odd harmonics and components whose frequencies are
even multiples of the fundamental waveform frequency are even harmonics.
HDG6000B(C) can output up to 16th order of harmonic. After selecting CH1 or CH2, press
Harmonic at the front panel to enter the harmonic setting menu. Users can set the parameters of
fundamental waveform, set the type of harmonic, specify the highest order of harmonic and set
the amplitude and phase of each order of harmonic.
After finishing harmonic parameter setting, press Output1 or/and Output2 and the backlight of
the button turns on, the instrument outputs the specified harmonic from the corresponding output
terminal.
4.2 Set the Fundamental Waveform Parameters
Users can set various fundamental waveform parameters such as frequency, period, amplitude,
DC offset voltage, high level, low level and start phase. It also supports align phase operation.
Please refer to introductions in "Basic Waveform Output" to set fundamental waveform
parameters.
4.3 Set the Harmonic Order
The highest order of harmonic output cannot be greater than this setting value.
Press Harmonic at the front panel to select the waveform and the backlight of the button turns on.
Press Order softkey (at this point, "Order" on the screen is highlighted) and use the numeric
keyboard or the direction keys and knob to input the harmonic order.
The range is limited by the maximum output frequency of the instrument as well as the
fundamental waveform frequency.
Order Range: integers within 2 to maximum output frequency of the instrument ÷
fundamental waveform frequency.
The maximum is 16.
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