Cheetah KAC Camera User Manual | Camera Link (CLF) Interface
October 1, 2019
Page
75
of
135
Rev 7.2
Figure 38: Exposure control window.
4.7.1.4 Exposure Control (Texp)
Sets the camera exposure time with three options.
1.
Off
– no exposure control. The camera free runs and the exposure time equals
the frame time.
2.
Trigger Pulse Width
– the pulse width (duration) determines the exposure.
Trigger must be enabled.
3.
I
nternal
– internal camera registers control the exposure. Exposure time slider –
sets the actual camera exposure in microseconds. The minimum exposure time
adjusts accordingly, based on the camera mode of operation. The slider can only
be used when “Internal” mode is enabled.
4.7.1.5 Fixed Frame Period
These controls allow the user to control the frame rate and the line rates of the camera.
Since the camera outputs data at a very high rate, the line time controls are used to
match the camera output rate to the interface bandwidth. The fixed frame period control
should be enabled to achieve the desired output frame rate.
Fixed Frame Period
– can be enabled or disabled. If enabled, the frame time can be
set using the slider bar (in microseconds) or by entering the desired frame time in the
box to the right of the slider.
Line Time
- The camera will automatically compute the minimum line time necessary
to match the camera output data rate to the interface data rate. As a general rule,
the user should always set the line rate to the minimum value.
4.7.1.6 Area of Interest (AOI)
AOI is used to select the area of the image sensor which will be output to the user. The
user chose to output the entire image sensor field of view or any region within this field of
view.
