Specifications
41
Manta Technical Manual V8.0.1
Number of frames
The number of frames (
StreamHoldCapacity
) depends on resolution, pixel
format, and GVSP packet size. The stated number of frames is typical for full
resolution,
Mono8
or
Bayer8
, and
GevSCPSPacketSize
=
8192
bytes per packet.
Resolution and ROI frame rate
ROI frame rate is listed after the specification table. The resulting frame rate from
changing sensor height from full image to a single line. Unless otherwise noted,
sensors do not give an increase in readout speed with a reduction in width.
However, in cases where a camera is limited by frame rate due to bandwidth
restrictions, a reduction in width results in a frame rate increase. Models with a
burst mode frame rate are able to output more data than the maximum available
bandwidth (124 Mbps) and provides a frame rate increase with a reduction in
width.
Resolution and ROI measurements
•
Data was generated at full resolution using
StreamBytesPerSecond
=
124
Mbps (full bandwidth) and an 8-bit pixel format. Frame rate may be lower if
using network hardware incapable of 124 Mbps.
•
For maximum speed advantage on quad-tap CCD sensors, ROIs are center
image, where
OffsetY
= (full sensor height – ROI height)/2.
•
There is no frame rate increase with reduced width unless otherwise noted.
•
BinningVertical
is vertical row summing on sensor before readout. The
frame rate for an ROI at the same effective height as binning is slower because
the sensor still needs to read out the “fast readout rows” in ROI mode.
Frame rate for CCD sensors
The frame rate is a theoretical maximum frame rate of the CCD sensor according to
the given formula.
Frame rate and readout
Although the sensor is capable of higher frame rates, readout is limited by GigE
bandwidth and exposure value. You can improve frame rates with a reduced ROI
and shorter exposure values.
