Matrix mvBlueFOX3 User Manual

Figure 2: Output sequence of RAW data
9.3 CMOS sensors
9.3.1 Details of operation
The CMOS sensors offer two different modes of operation:
Free running mode (Overlapping integration and readout)•
Snapshot mode (Sequential integration and readout)•
9.3.1.1 Free running mode
In free running mode, the sensor reaches its maximum frame rate. This is done by overlapping
erase, integration and readout phase. The sensor timing in free running mode is fixed, so there is no
control when to start an acquisition. This mode is used with trigger mode Continuous.
9.3.1.2 Snapshot mode
In snapshot mode, the image acquisition process consists off several sequential phases:
Trigger•
Erase, exposure and readout•
Trigger
Snapshot mode starts with a trigger. This can be either a hardware or a software signal.
The CMOS sensors used in mvBlueFOX3 cameras support the following trigger modes:
Description Setting in GenICam
Free running, no external trigger signal needed
(formerly known as Continuous).
"TriggerSelector = FrameStart"
"TriggerMode = Off"
Image acquisition triggered by command
(software trigger; formerly known as
OnDemand).
"TriggerSelector = FrameStart"
"TriggerMode = On"
"TriggerSource = Software"
"ExposureMode = Timed"
To trigger one frame execute the
TriggerSoftware@i command then.
Start an exposure of a frame as long as the
trigger input is below the trigger threshold
(formerly known as OnLowLevel).
"TriggerSelector =
AcquisitionActive"
"TriggerMode = On"
"TriggerSource = <desired Line>"
"TriggerActivation = LevelLow"
"ExposureMode = Timed"
Start an exposure of a frame as long as the
trigger input is above the trigger threshold
(formerly known as OnHighLevel).
"TriggerSelector =
AcquisitionActive"
"TriggerMode = On"
"TriggerSource = <desired Line>"
"TriggerActivation = LevelHigh"
9 Sensor overview
62

Matrix mvBlueFOX3 Specifications

General

Brand	Matrix
Model	mvBlueFOX3
Category	Digital Camera
Language	English