18
Trigger width detection
The figure shows trigger signal negative polarity (Low-level width detection).
Burst trigger
Exposure can be repeated with a single trigger signal. Two modes are available: a mode that repeats a single exposure
time and a mode that alternately repeats two exposure times. You can specify the number of exposures and the interval
between repeatedly setting the trigger signal on.
Trigger edge detection (ExposureMode = Timed)
BurstTriggerPeriod=TriggerDuration
BurstTriggerMode=DualExposureMode
Feature
Parameter
Setting
BurstTriggerMode
Off (0)
SingleExposureMode
(1)
Upon trigger edge detection
Exposes for the period set in ExposureTime.
Upon trigger width detection
Exposes for the range of trigger width.
DualExposureMode (2) Upon trigger edge detection
Exposes for periods set in ExposureTime and
ExposureTime2 alternatively.
Upon trigger width detection
Exposes for periods in trigger width and trigger width
× Exposure2Ratio alternately.
BurstTriggerPeriod
FrameCount (0)
Exposes only the number of times set in BurstFrameCount.
TriggerDuration (1)
Performs burst exposure while the input trigger is on. However, burst exposure is
terminated when it reaches BurstFrameCount.
Enabled when ExposureMode is in edge detection mode. Disabled in width detection
mode.
BurstFrameCount
0 to 1 to 65533
0: Repeats continuously
1 or more: Exposure for designated number of times
BurstForceStop
Forced termination of repeated exposure
Exposure2Time
1 to 83998 to 60000000 Second exposure time during trigger edge detection
Exposure2Ratio
×1 (1), ×2 (2), ×4 (4),
×8 (8), ×16 (16)
Value to determine the second exposure time of trigger width detection. The first
exposure time (trigger width) multiplied by this value is the second exposure time.
Trigger signal
Sensor output
Exposure
ExposureTime
Trigger signal
Exposure
Exposure2Time
The continuous exposure ends when either one of the following conditions occurs.
• Trigger signal Off is detected
• The num
b
er of times of exposure reaches the num
b
er specified in BurstFrameCount
ExposureTime Exposure2Time ExposureTime Exposure2Time ExposureTime Exposure2Time
