Basler Vision Technologies Sprint Series, Руководство пользователя

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Exposure Start and Exposure Time Control
68 Basler sprint Mono Cameras
Fig. 27: ExSync Edge Controlled Mode
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In ExSync level controlled mode, line acquisition begins on the rising edge of the ExSyc
signal. The exposure time is determined by the time between the falling edge of ExSync and
the next rising edge. The pixels are exposed and charge is accumulated only when ExSync is
low. The pixel values are read out of the sensor on the rising edge of the ExSync signal (see
Figure 28).
Fig. 28: ExSync Level Controlled Mode
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In ExSync programmable mode, line acquisition begins on the rising edge of the ExSyc
signal. The rising edge of ExSync triggers exposure and charge accumulation for a pre-
programmed period of time. The pixel values are read out of the sensor at the end of the pre-
programmed period. The falling edge of ExSync is irrelevant (see Figure 3-4).
A parameter called “Exposure Time” is used to set the length of the pre-programmed exposure
period.
Fig. 29: ExSync Programmable Mode
ExSync Period
Exposure
Line Readout
ExSync
Signal
ExSync Period
Exposure
Line Readout
ExSync
Signal
ExSync Period
Exposure Time
Line Readout
ExSync
Signal