NASA NGSLR, Руководство по эксплуатации

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NGSLR Operations Manual Performing MINICO and Stability Tests
Document Number: P a g e | 4 7
NASA NGSLR OPS Manual (v1.0)
10. Make sure the laser is firing at the correct rate (approx. 2 kHz)
This should show up on the main RAT window (Figure 6 5).
Figure 6 5: Ratgui main window showing that the SLR laser is firing at 2 kHz
11. Open the View => O C Range Plot to visually see the returns
12. Go to View => Quad Detector window to show the actual signal counts
13. Verify that the system is receiving between 40 and 200 signal counts Adjust the rotary ND filters if
necessary to achieve the appropriate number of returns (Figure 6 6).
Figure 6 6: Quad Detector window
14. Record the ND value used for the current target on
the log sheet
15. Repeat steps 12 14 to collect ND values for each
calibration pier (C, A, B)
a. On RAT, go to the Control => Schedule
submenu (Figure 6 7).
b. Open the Cal Targets pull down menu and
select the next target (Figure 6 7).
c. Select Apply.
Figure 6 4: Enable Control Box
Adjusting the Rotary ND filters :
The default number of ND s applied by the rotary
ND s is 2.0. Look at the signal counts shown in
Figure 6 6. If it isn t in between 40 and 200,
remove or add ND s using the
Number of ND s
Used entry in the Misc Control window to get the
number of returns within an appropriate range.