Datasheet
39
Press 〖Ampl Diff〗and 〖Offs Diff〗softkey to configure the desired amplitude difference
and offset difference. The amplitude coupling relationships of two channels are as below,
Amplitude of object channel = amplitude of source channel + amplitude difference
Offset of object channel = offset of source channel + offset difference
5.14.4 Waveform Combine
In waveform combine, select most waveforms mentioned above table except of some.
Waveform combine is similar to Sum modulation. The difference is that Sum modulation
use modulating waveform but waveform combine allows using continuous wave,
modulating wave, sweeping wave and bursting wave. Therefore, more complicated wave
can be generated for waveform combine.
Press 〖Combine On/Off〗softkey then select On to enable waveform combine feature.
The waveform of source channel can be combined with the one of object channel, then
output from the connector of object channel.
Enter into the parameter coupling menu and press 〖Combine Ampl〗softkey to set the
parameter of combine amplitude. Combine amplitude represents the source channel
amplitude superposed to object channel waveform, expressed by percentage of object
channel amplitude setting. For 100% combine amplitude, source channel amplitude
equals to the half of object channel amplitude. For 0% combine amplitude, source
channel amplitude is 0, now object channel amplitude is half of setting, the relationship
between dual channels are:
Combined waveform = source channel wave × combine amplitude + object channel
wave
5.15.5 Waveform Combine Example
Make use of waveform combine feature, the waveform generator can output some
special waveforms. For example, couple two narrow pulse on CHB. You can operate as
following steps:
(1) Enable CHA to be continuous, 10kHz Square with duty cycle 10%.
(2) Enable CHA to be burst again, burst period 1ms and burst count 2.
(3) Press 〖Dual Channel〗key and set the amplitude combine to be 50%.
(4) Press 〖Combine On/Off〗softkey then select On.
(5) Enable CHB to be continuous, 1kHz Sine.
(6) Then a Sine superposed by two narrow pulse at each period output from CHB
connector.