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Spyder3 S3-14 and S3-24 Monochrome Camera User's Manual
03-032-20117-01
Teledyne DALSA
Exposure Modes in Detail
Mode 2: Internally Programmable Line Rate and Exposure Time
(Factory Setting)
Mod e 2 op erates at a m axim u m line rate and exp osu re tim e.
When setting the line rate (u sing the
ssf
com m and ), exp osu re tim e w ill be red u ced , if necessary, to
accom m od ate the new line rate. The exp osu re tim e w ill alw ays be set to the m axim u m tim e (line
p eriod – line transfer tim e – p ixel reset tim e) for that line rate w hen a new line rate requ iring red u ced
exp osu re tim e is entered .
When setting the exp osu re tim e (u sing the
set
com m and ), line tim e w ill be increased , if necessary,
to accom m od ate the exp osu re tim e. Und er this cond ition, the line tim e w ill equ al the ex p osu re tim e
+ line transfer tim e.
Example 1: Exposure Time less than Line Period
Mode 3: External Trigger with Maximum Exposure
Line rate is set by the p eriod of the external trigger p u lses. The falling ed ge of the external trigger m arks
the beginning of the exp osu re.
Example 2: Line Rate is set by External Trigger Pulses.
Line Period
Exposure Time
Line Period
Readout
Exposure Time
EXSYNC
Falling Edge
Ignored During
Readout
Readout
Falling Edge
Ignored During
Readout
Programmable Period (
set
command)
Line Period
Readout
CR
Exposure Time
Line Period
Programmable Period
CR
Exposure Time
Programmable Period (
ssf
command)
Readou
t
Programmable Period
CR=Charge Reset
