Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
<strong>Pantera</strong> <strong>SA</strong> DS -21-0<strong>2M30</strong> and DS-22-0<strong>2M30</strong> User’s Manual 73<br />
Step Five: Recording Tap Averages for t 0%<br />
(Dark Offset)<br />
Begin Step Five<br />
In this step, you will be recording tap averages while blocking illumination to the<br />
camera. Since it is not possible to set the camera to a zero exposure time, an<br />
acceptable condition is created by setting the exposure time to t 90%<br />
and blocking the<br />
illumination to the camera.<br />
Block illumination to<br />
camera<br />
Set the camera's exposure<br />
time to t 90% using the<br />
command set t 90%<br />
If it is not possible to block light to the camera, enter the minimum<br />
allowable Exposure Mode 2 exposure time. See the set command for<br />
the minimum allowable value.<br />
Apply frame averaging to grabbed<br />
images. See section <strong>Frame</strong><br />
Averaging in Step Two for details<br />
Measure:<br />
Tap 1 average ( Avg_tap1)<br />
Tap 2 average ( Avg_tap2)<br />
See Tap Averaging description in<br />
Step Two for details.<br />
In spreadsheet, record avg_tap1,<br />
avg_tap2 for t 0%<br />
Entering t 0% Tap Averages into<br />
LUT Calibration Spreadsheet<br />
1. Open the <strong>2M30</strong><strong>SA</strong> phase1.75 LUT Calibrations.xls spreadsheet if it is not<br />
already open.<br />
2. On the Enter Data Here tab, enter the Avg_tap1 , and Avg_tap2 beside the<br />
exposure time.<br />
t 0%<br />
Proceed to Step Six<br />
DAL<strong>SA</strong> 03-32-10150-01
Change language