Baumer EXG03 User Manual

8
Timings2.2.
The image acquisition consists of two seperate, successively processed components.
Exposing the pixels on the photosensitive surface of the sensor is only the rst part of the
image acquisition. After completion of the rst step, the pixels are read out.
Thereby the exposure time (t
exposure
) can be adjusted by the user, however, the time need-
ed for the readout (t
readout
) is given by the particular sensor and used image format.
Baumer cameras can be operated with two modes, the Free Running Mode and the
Trigger Mode.
The cameras can be operated non-overlapped
*)
or overlapped. Depending on the mode
used, and the combination of exposure and readout time:
Non-overlappedOperation OverlappedOperation
Here the time intervals are long enough
to process exposure and readout succes-
sively.
In this operation the exposure of a frame
(n+1) takes place during the readout of
frame (n).
Exposure
Readout
Exposure
Readout
Due to the differing CMOS sensor models installed to the Baumer EXG cameras, the
operation modes are subdevided into the respective camera models.
2.2.1. FreeRunningMode
In the "Free Running" mode the camera records images permanently and sends them to
the PC. In order to achieve an optimal (with regard to the adjusted exposure time t
exposure
and image format) the camera is operated overlapped.
In case of exposure times equal to / less than the readout time (t
exposure
≤ t
readout
), the maxi-
mum frame rate is provided for the image format used. For longer exposure times the
frame rate of the camera is reduced.
EXG03/EXG03c2.2.1.1.
Exposure
Readout
Flash
t
exposure(n)
t
flash(n)
t
flashdelay
t
flash(n+1)
t
readout(n+1)
t
readout(n)
t
exposure(n+1)
t
ash
= t
exposure
*) Non-overlapped means the same as sequential.
Imageparameters:
Offset
Gain
Mode
Partial Scan
Timings:
A - exposure time
frame (n) effective
B - image parameters
frame (n) effective
C - exposure time
frame (n+1) effective
D - image parameters
frame (n+1) effective

Baumer EXG03 Specifications

General

Brand	Baumer
Model	EXG03
Category	Security Camera
Language	English