Spyder3 SC-34 Color Camera User's Manual
71
Teledyne DALSA
03-032-20116-01
Verify Pixel Coefficients
Use the
dpc
com m and to d isp lay the p ixel coefficients in the ord er FPN , PRN U, FPN , PRN U… The
cam era also retu rns the p ixel nu m ber for each fifth p ixel.
End-of-line Sequence
To fu rther aid d ebu gging, the cam era can generate an end -of-line sequ ence. The end -of-line-sequ ence
ou tp u ts "aa", "55", "line cou nter", "line average", "p ixels above threshold ", "p ixels below threshold ". To
activate the end -of-line sequ ence, u se the com m and s
els 3 (LVAL extended by 16 (stat)
pixels) or els 7 (LVAL shifted by 16 pixels to encompass stat pixels)
. To d isable
the end -of-line sequ ence, u se the com m and
els 0
.
Use the
sut
and
slt
com m and s to set threshold valu es betw een 0 and 255 for 8 bit d ata m od es, or 0 to
4096 for 12 bit d ata m od es.
Specific Solutions
No Output or Erratic Behavior
If you r cam era p rovid es no ou tp u t or behaves erratically, it m ay be p icking u p rand om noise from long
cables acting as antennae. Do not attach w ires to u nu sed p ins. Verify that the cam era is not receiving
sp u riou s inp u ts (e.g. EXSYN C if cam era is in exp osu re m od e that requ ires external signals).
Line Dropout, Bright Lines, or Incorrect Line Rate
Verify that the frequ ency of the internal sync is set corre ctly, or w hen the cam era is set to external sync
that the EXSYNC signal supplied to the camera does not exceed the camera‘s useable Line rate under the
cu rrent op erating cond itions.
Noisy Output
Check you r p ow er su p p ly voltage ou tp u ts for noise. N oise p resent on these lines can resu lt in p oor vid eo
qu ality.
Dark Patches
If d ark p atches ap p ear in you r ou tp u t the op tics p ath m ay have becom e contam inate d . Clean you r lenses
and sensor w ind ow s w ith extrem e care.
1.
Take stand ard ESD p recau tions.
2.
Wear latex gloves or finger cots
3.
Blow off d u st u sing a filtered blow bottle or d ry, filtered com p ressed air.
4.
Fold a p iece of op tical lens cleaning tissu e (ap p rox. 3" x 5") to m ake a squ are p ad that
5.
is ap p roxim ately one finger -w id th
6.
Moisten the p ad on one ed ge w ith 2-3 d rop s of clean solvent—either alcohol or acetone. Do not
satu rate the entire p ad w ith solvent.
7.
Wip e across the length of the w ind ow in one d irection w it h the m oistened end first, follow ed by
the rest of the p ad . The d ry p art of the p ad shou ld follow the m oistened end . The goal is to
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