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100
Operational Reference
Calibir GXM640 IR Camera User's Manual
Trigger Control Features Category
The Trigger Control Features category, as shown by CamExpert, groups features used to
configure an external trigger input for acquisition. For more information on using an
external trigger input, see the
section; for connection information see the
Figure 41: CamExpert Trigger Control Features Category
Trigger Controls Feature Descriptions
The following table describes these parameters along with their view attribute.
Table 25: Trigger Control Controls Feature Descriptions
Display Name
Feature & Values
Description
View
Sensor Readout Time (in
μs)
readoutTime
Time taken by camera to readout a frame
from the sensor. The readout time is factory
calibrated. The readout time / number of
image lines provides the acquisition delay
between lines. (RO)
Beginner
DFNC
Sensor Readout Alignment
Mode
readoutAlignment
Determines if the sensor outputs frames on
request or is free-running.Typically,
microbolometers sensors provide better
image quality when free-running.
Beginner
DFNC
Free Running
FreeRunning Microbolometer sensor is continuously
acquiring images. This ensures the most
stable operating temperature conditions and
provides better image quality. When
TriggerMode is On, upon reception of a
trigger event the next frame will be output.
This gives a frame latency up to one frame
(33.3 ms).
Frame On Demand
FrameOnDemand When TriggerMode is On, the
microbolometer will output images only
upon detection of a valid trigger event. This
gives a deterministic frame latency and is
useful when synchronizing multiple
cameras. Image quality will be best when
the triggers occur at a stable frequency.
Trigger Selector
TriggerSelector
Selects which type of trigger to configure
with the various Trigger features.
Beginner