Dalsa Everywhereyoulook Xtium2-CXP PX8, Руководство пользователя

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CamExpert Quick Start Xtium2-CXP PX8 User's Manual
Display Name Parameter Description
External Trigger
Ignore Delay
CORACQ_PRM_EXT_TRIGGER_IGNORE_DELAY Sets the time delay, in µsec, where if another external
trigger occurs, it is ignored. Valid range is 0-42949672.
The start of the delay (time '0') is the end of the next
vertical sync for analog cameras, or the beginning of the
next frame valid for digital cameras, following a valid
external trigger.
Shaft Encoder
Direction
CORACQ_PRM_SHAFT_ENCODER_DIRECTION Selects the direction of the shaft encoder that
increments/decrements the acquisition device encoder
counter.
Support of dual phase encoders might require that the
direction of motion be considered. This is the case where
system vibrations and/or conveyor backlash can cause
the encoder to momentarily travel backwards. The
acquisition device must in those cases count the reverse
steps and subtract the forward steps such that only
pulses after the reverse count reaches zero are
considered valid.
Shaft Encoder Level CORACQ_PRM_SHAFT_ENCODER_LEVEL Specifies the level of the signal input to the shaft
encoder.
Shaft Encoder Edge
Drop
CORACQ_PRM_SHAFT_ENCODER_DROP
Number of shaft encoder signal edges dropped between
active shaft encoder triggers.
Use the pulse drop feature to reduce the acquisition rate
without reducing the shaft encoder trigger rate.
Shaft Encoder Edge
Multiplier
CORACQ_PRM_SHAFT_ENCODER_MULTIPLY Number of signal edges generated internally on the
acquisition board for each external shaft encoder signal
edge.
Use when video acquisitions are controlled by an external
shaft encoder trigger but multiple acquisitions are needed
from each trigger.
Shaft Encoder Order CORACQ_PRM_SHAFT_ENCODER_ORDER Specifies the order of the drop/multiply operation of the
shaft encoder.
Shaft Encoder
Averaging Enable
CORACQ_PRM_SHAFT_ENCODER_AVERAGING_EN
ABLE
Enables/Disables averaging of the shaft encoder signal
edges received.
Shaft Encoder
Averaging Pulses
(2^N)
CORACQ_PRM_SHAFT_ENCODER_AVERAGING_PUL
SES
Specifies the number of shaft encoder signal edges used
to make an average.
Shaft Encoder
Averaging Period
Minimum (in ns)
CORACQ_PRM_SHAFT_ENCODER_AVERAGING_PE
RIOD_MIN
Minimum time between 2 shaft encoder signal edges for
the pulses to be averaged. If minimum time is not
respected, the average engine will do a clean restart.
Shaft Encoder
Averaging Period
Maximum (in ns)
CORACQ_PRM_SHAFT_ENCODER_AVERAGING_PE
RIOD_MAX
Maximum time between 2 shaft encoder signal edges for
the pulses to be averaged. If the maximum time is not
respected, the average engine will do a clean restart.
External Line Trigger
Detection
CORACQ_PRM_EXT_LINE_TRIGGER_DETECTION Select the signal detected (rising edge/falling edge) that
generates an external line trigger to the acquisition
device.
External Line Trigger
Level
CORACQ_PRM_EXT_LINE_TRIGGER_LEVEL Specifies the level of the signal input to the external line
trigger input.
External Line Trigger
Source
CORACQ_PRM_EXT_LINE_TRIGGER_SOURCE
CORACQ_PRM_EXT_LINE_TRIGGER_ENABLE
Specifies the physical input source the external line
trigger is connected to on the acquisition device, in the
case where the acquisition device has more than one
input.
Line scan cameras typically use the shaft encoder signals
as the acquisition board line trigger.
The 'Automatic' choice selects the trigger normally used
with the acquisition module, in the case of multiple
modules – multiple trigger inputs.