Allied Vision Alvium G1 - Triggering and Sensor Shutter Types

Specifications
55Alvium G1 User Guide V1.7.0
Triggering and sensor shutter types
Triggering behavior differs between cameras with global shutter (GS) and
electronic rolling shutter (ERS).
Triggering
The following table shows how the shutter mode impacts available frame rates:
Sensor type Shutter mode Trigger mode Available frame rates ROI frame rates
Global shutter
Global shutter Freerun Maximum values Increased values
Global shutter External trigger Maximum values Increased values
Rolling shutter
Rolling shutter Freerun Maximum values Increased values
Rolling shutter External trigger Reduced values Increased values
Global reset shutter
(GRS)
Freerun Maximum values No increase
Global reset shutter
(GRS)
External trigger Maximum values No increase
Table 16: Frame rates depending on shutter modes and trigger modes
Achieved frame rates may not match specified values
• Some sensors have an exposure start jitter that may reduce maximum frame
rates.
• Your individual setup may cause delays in data transmission.
Bandwidth adjustments
Consider the bandwidth available for camera payload depends on your individual
hardware, the operating system, software and drivers, and your application. We
recommend you to adjust
DeviceLinkThroughputLimit to your requirements.
Interdependencies between ROI and ExposureTime values
Changing parameters for ROI can affect values for
ExposureTime, such as
minimum, maximum, and increments, but
ExposureTime itself as well. We
recommend you to set:
• ROI values
• DeviceLinkThroughputLimit
before you set values for ExposureTime.
See Value changes by feature interdependencies on page 227 for details.