Shad-o-Scan 3001/4501 User Manual (Draft)
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Teledyne DALSA
Trigger Mode
Synchronous Mode
In this mode the detector will run continuously on internal timing. No trigger input is
required to initiate a frame read-out. The frame rate is determined by the time between
successive frame read-outs which can be set by the Exposure or Framerate feature.
In this mode the sensor will integrate and read-out continuously even when the host does
not acquire any images. However the trigger output is suppressed when no images are
acquired, this is useful to see at what moment an integration period will be acquired and
streamed to the host system.
When a grab is started the next integration period will be acquired and sent to the host
system. If a grab is started but the sensor is still in the integration period this frame will
be dropped and the following frame will be send to the host system; this to avoid changes
to the sensor during the integration period (which can happen before acquiring images).
Row #
Pixel Array
Time
ReadOut
Integration
Time
Frame (N)
Frame (N+1)
Trigger Input
Frame Blanking
interval
Sensor Data Output
B
C
FreeRunning Mode
A
Operation mode
Full resolution Binning 2x2
1/A: Frame rate
730 FPS
1390 FPS
A: integration time
1.36 ms
0.644 ms
B: readout time
1.36 ms
0.644 ms
C: Frame Blanking interval (A_B) 0.001 ms
0.001 ms
Figure timing diagram 'free running'
