Scan DGD/SOPMD value in table:
This function scans through a set of user defined DGD/SOPMD pairs.
Enter the PMD values to be scanned in the table on the left of the screen. Each row
designates one DGD/SOPMD pair. The DGD value, in ps, should be entered in the first
column and the SOPMD value, in ps
2
, in the second column.
As in the other scan functions, the dwell time per point (Scan Interval, in s) should be set
in the box at the top of the graph. The minimum value is 0.4 s.
When all of the PMD values are entered into the table, click “Start” to start the scan. At
each point in the scan, the DGD, SOPMD, and maximum output DOP for that point are
displayed above the graphs, and the maximum output DOP vs. DGD is plotted in the
graph on the left. The maximum output DOP for the scan and the corresponding DGD
and SOPMD values are displayed below the graph. The graph on the right is a 3D graph
of DOP vs. SOPMD and DGD. It can be rotated or zoomed for viewing from different
perspectives.
To rotate a 3D graph, drag it with the mouse. To zoom in or out, hover the mouse over it
and scroll up or down.
After the scan is finished, the data can be saved to a file by clicking “SAVE DATA”.
Data is saved as a text file with 3 columns: DGD, SOPMD, and DOP.
Document #: GP-UM-PMD-1000-21
Page 84 of 122
