Spyder3 GigE Vision User’s Manual
DALSA 03-032-20027-02
39
Exposure Modes in Detail
Mode 2: Internally Programmable Line Rate and Exposure Time (Factory Setting)
Mode 2 operates at a maximum line rate and exposure time.
•
When setting the line rate (using the
AcquisitionLineRateAbs
command), exposure
time will be reduced, if necessary, to accommodate the new line rate. The exposure
time will always be set 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
ExposureTimeAbs
command), line time
will be 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
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.
Programmable Period (
set
command)
Line Period
Readout
CR
Exposure Time
CR=Charge Reset
Line Period
Programmable Period
CR
Exposure Time
Programmable Period (
ssf
command)
Readout
Programmable Period
Line Period
Exposure Time
Line Period
Readout
Exposure Time
EXSYNC
Falling Edge
Ignored During
Readout
Readout
Falling Edge
Ignored During
Readout
Содержание Spyder3 SG-11-01k40-00-R
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