Dalsa Spyder3 User Manual page 33

Spyder3 Color Manual
to the maximum time (line period – line transfer time – pixel reset time) for that line
rate when a new line rate requiring reduced exposure time is entered.

When setting the exposure time (using the
increased, if necessary, to accommodate the exposure time. Under this condition, the
line time will equal the exposure time + line transfer time.
Example 1: Exposure Time Less than Line Period
CR = Charge Reset
Mode 3: External Trigger with Maximum Exposure
Line rate is set by the period of the external trigger pulses. The falling edge of the external
trigger marks the beginning of the exposure.
Example 2: Line Rate is set by External Trigger Pulses.
EXSYNC
Mode 4: Smart EXSYNC, External Line Rate and Exposure Time
In this mode, EXSYNC sets both the line period and the exposure time. The rising edge of
EXSYNC marks the beginning of the exposure and the falling edge initiates readout.
Example 3: Trigger Period is Repetitive and Greater than Read Out Time.
CR
EXSYNC
CR = Charge Reset
DALSA
Programmable Period (set command)
Waiting
Readout CR
Line Period
Programmable Period (ssf command)
Line Period
Readout
Exposure Time
Falling edge ignored
during readout
Line Period
Exposure Time
Readout
command), line time will be
set
Exposure Time
Readout
Waiting Exposure Time
CR
EXSYNC falling edge
ignored during readout
33
Programmable Period
Waiting CR Exposure Time
Line Period
Programmable Period
Line Period
Readout
Exposure Time
Falling edge ignored
during readout
Line Period
Waiting
Readout
EXSYNC falling edge
ignored during readout
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