CHEETAH Hardware User’s Manual
Imperx, Inc.
Rev. 1.6
6421 Congress Ave.
8/26/2016
Boca Raton, FL 33487
+1 (561) 989-0006
90 of 121
4.7.1.1 Exposure, Frame Time and Line Rate Controls
This window controls the camera exposure, line and frame time.
Figure 42:
Exposure control window
Exposure Time
Sets the camera exposure period with three options.
Off
– no exposure control. The camera free runs and the
exposure time equals the frame time.
Trigger Pulse Width
– the pulse width (duration)
determines the exposure. Trigger must be enabled.
Internal
– internal camera registers controls the exposure.
Exposure time slider – sets the actual camera exposure in
microseconds. The maximum exposure time adjusts
accordingly, based on the camera frame time. The slider can
only be used when “Internal” mode is enabled.
Frame Period and Line Rate Controls
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 Programmable Frame Time control should
be enabled to achieve the desired output frame rate.
Programmable Frame Time
– can be enabled or disabled.
If enabled, the frame time can be set using the slider bar (in
microseconds) or by inputting the desired frame time in the
box to the right of the slider.