Pyrocam IV Operator’s Manual Document No. 50337-001 Rev F 2/21/2017 Page 11
Hint: Always remember to re-Ultracal after changing the Trigger Mode or the
Exposure setting.
Gain Control
The Pyrocam has a video gain control to help with viewing lower intensity lasers. The
number in the slide control does not correspond to the actual gain in V/V. The
corresponding gain for each setting is shown in Table 1.
Table 1 - Gain Control Settings
Hint: Always remember to re-Ultracal after changing the Gain setting.
Bad Pixel Correction
Click this control to enable/disable bad pixel (BP) correction in the Pyrocam. Bad pixel
correction will default in the ON state and should always be enabled except when looking
for defective pixels. If this control is deactivated, it indicates that the Pyrocam does not
have a Bad Pixel map programmed. The procedure for finding and correcting bad pixels is
described in APPENDIX C.
Note: The Pyrocam has separate Bad Pixel Correction maps programmed for pulsed and
chopped operation. Two BP maps are created at the factory and are flashed into
the Pyrocam’s EEPROM memory. The factory BP maps are also supplied as two files
that can be reloaded in the event that the internal maps are accidentally deleted or
corrupted. BP maps can also be read from the Pyrocam and saved into a BP map
file.
Click on the expansion button to modify or create a BP correction map. This is done by
working with a
List
that contains the coordinates of the pixels to be BP mapped. This
List
is an intermediate device that is employed to transfer the BP map to/from the Pyrocam or
to/from a BP text file. The Bad Pixel Correction Dialog tools can:
Read a BP
List
from the Pyrocam
Write a BP
List
into the Pyrocam
Add (mark) a single BP to the BP
List
Remove (unmark) a single BP from the BP
List
Add (mark) a row of BP’s to the BP
List
Remove (unmark) a row of BP’s from the BP
List