China Electronics Technology Instruments AV3672 Series, User Manual

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3 Introduction to Use
3.5 Data Analysis
68
3.5.4.1 Creating and Editing of Ripple Limit Line
The ripple limit test can be done to several traces at the same time. The ripple limit can be set after the trace is
activated.
1) Setting method
a) Menu path: [Analysis] > [Test] > [Ripple test] . The test dialog box will appear.
b) Click the [Table] button in the dialog box to open the ripple limit table.
Fig. 3.62 Ripple Test Dialog Box
2) Ripple limit table
Type Start stimulus Stop stimulus Maximum fluctuation
1 ON 100.000kHz 2.000GHz 5.000dB
2 ON 2.000GHz 3.000GHz 10.000dB
3 OFF 100.000kHz 3.000GHz 100.000dB
Fig. 3.63 Ripple Limit Table
“Type” box
The “Type” box is used to set the limit test type:
ON: enable the test of the limit segment.
OFF: disable the test of the limit segment.
“Start stimulus” box and “Stop stimulus” box
Set the start and stop stimulus value of the ripple limit segment.
“Maximum fluctuation” box
Set the maximum fluctuation of the test line of the ripple limit segment test.
3.5.4.2 Setup of Ripple Test
After creating the ripple limit line, select the mode of displaying or hiding the ripple limit line of one trace. Even if
the limit line is hided, the corresponding ripple test is still effective. You can select to send the warning sound and
display the failure sign (FAIL) in case of the failure of ripple test. When the ripple test function is enabled, the trace
of the failure part is red in the default mode. You can change the
limit failure color in the “ Color setting
” of the
right-click menu of the mouse, and the trace color of the passing part remains unchanged.
Menu path: [Analysis] > [Test] - [Ripple test ]. The test dialog box will appear.
The ripple test can only be done at the actual sweep measurement point. The instrument can still pass the ripple test
if only a few sweep points are applied and the performance indicators of the DUT may not conform to the
requirements. Therefore, sufficient sweep points should be applied in actual measurement of the limit test.