
Specifications
27
Alvium USB Cameras User Guide V1.1.0
Frame rate jitter
Generally, some parameters can be changed during exposure without affecting the
timing. When the camera is operated in freerun mode without triggering, changing
parameters during exposure leads to a frame rate jitter.
When parameters are entered, the next frame starts only after readout and sensor
reconfiguration delay are finished. When the camera is run in
AutoExposure
mode, the actual frame rate is less than the calculated value for the corresponding
exposure time. Please, consider frame rate jitter for your application.
ROI frame rates
Calculation of maximum frame rates for different regions of interest (ROIs) for
Alvium USB cameras does not allow to give a formula. Data was generated at
minimum exposure time and full resolution, using Mono8 pixel format. The
bandwidth of your system can limit the available maximum frame rate.
Triggering and sensor shutter types
Triggering behavior differs between cameras with global shutter (GS) and
electronic rolling shutter (ERS). See
on page 77 for details.
Power consumption
Values are given for maximum performance of the camera. To reduce the power
consumption, reduce the frame rate or activated features.
Dimensions
In manufacturing, camera board and sensor are moved against each other to
adjust flange focal distance. The value range for camera length with open housing
cameras reflects in the technical drawings.
Figure 3: Delayed exposure due to parameters change
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