Dalsa Falcon 4-CLHS Series, Руководство пользователя

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Falcon™ 4 -CLHS Series Operational Reference • 25
Exposure Mode
ExposureMode Selects the exposure control operating mode. 1.00
Beginner
Timed Timed The length of the exposure is controlled with the
"Exposure Time" feature. The exposure starts with the
trigger event.
Trigger Width TriggerWidth Uses the width of the trigger signal pulse to control
the exposure duration. Use the Trigger Activation
feature to set the polarity of the trigger. The Trigger
Width setting is applicable with Trigger Selector =
Single Frame Trigger(Start). Available when using
Line1 or Line2 as trigger.
Note : the actual exposure time is 3 μ s longer
than the trigger width. That is, the pulse width
is always 3 μ s shorter than the required
exposure time.
Exposure Alignment exposureAlignment Specifies how the exposure is executed in relationship
to the sensor capabilities and current frame trigger. 1.00
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Synchronous Synchronous Exposure is synchronous to the internal timing of the
sensor. The readout is concurrent to the exposure for
the fastest possible frame rate. When a valid trigger is
received and the ExposureTime is shorter than the
readout period, the ExposureStart event is latched in
the previous frame’s readout. That is, the
ExposureStartEvent is delayed and is initiated when
the actual exposure starts such that the exposure
ends and readout begins as soon as the previous
readout has completed.
Reset Reset Sensor timing is reset to initiate exposure when a
valid trigger is received. Readout is sequential to
exposure, reducing the maximum achievable frame
rates. A trigger received during exposure or readout is
ignored since data would be lost by performing a
reset.
Exposure Delay exposureDelay Specifies the delay in microseconds (µs) to apply after
the FrameStart event before sending the
ExposureStart event. 1.00
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Exposure Time ExposureTime Sets the exposure time of the sensor in microseconds
(µs). 1.00
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Exposure Time Actual exposureTimeActual Measured Exposure Time in microseconds (µs). 1.00
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Shutter Mode SensorShutterMode Select the sensor shutter mode. 1.00
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Global Global Select sensor global shutter mode.
Gain Selector GainSelector Selects which gain and offset to control. (RO) 1.00
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Analog AnalogAll Analog Gain and offset applied to the sensor.
Gain Gain Video signal multiplier. 1.00
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Black Level Selector BlackLevelSelector Selects which offset to control. 1.00
Beginner
Black Level BlackLevel A signed offset added to the output.
DN_out = (DN_in + Black_Level) * Gain 1.00
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Fast Readout Mode fastReadMode Selects the sensor’s readout mode. 1.00
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Off Off The row timing and / or row readout are longer
therefore slowing down the maximum frame rate
Active Active The row timing and / or row readout are shorter than
in regular mode which increases the maximum frame
rate.