Publication No. 980935 Rev. A
3152B User Manual
the following relationship:
Duration = Modulation SCLK / Wavelength
Each of the parameters has a finite length and therefore, the
duration has maximum and minimum intervals. The modulation
SCLK has a range of 1 Hz to 2.5 MHz and the Wavelength is limited
from 2 points to 30,000 points. As a result, the duration can be
programmed from 800 ns to 30,000 s.
If you do not care to control the wavelength and the SCLK, then you
can leave the task for the 3D composer. In that case you must
leave the Force Length and Force SCLK check boxes – unmarked.
If you check the Force SCLK box, the wavelength will be modified
automatically to match the selected duration. If you check the Force
Length box, the modulation SCLK will be modified automatically to
match the selected duration. Finally, if you check both the Force
Length and the Force Modulation SCLK boxes, the duration of the
3D profile will be affected.
To modify wavelength or modulation SCLK, check the appropriate
box, modify the value and click on the Apply button to force the
selected value. Any successive changes that you make to the edit
fields require that you click on the Apply button to accept the new
value.
The Offset group controls DC offsets of the modulated waveform.
Changing offset does not affect other parameters except the
location of the waveform along the vertical axis.
The Clear Design button resets the 3D composer and the Reduce
button closes the dialog box.
Vertical Controls
The
Vertical Controls
are used for profiling amplitude, frequency
and phase. When you modify the fields in any of the controls, the
associated graphical screen are automatically updated with the
assigned values and display the profile as designed in the vertical
control fields. The Vertical Controls are shown in Figure 4-58. You
can start designing profiles only when one of the control fields is
active. Control fields become active when you click on a control
field.
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