15
Global shutter means that all pixels of the sensor are reset and afterwards exposed for a
specified interval (t
exposure
).
For each pixel an adjacent storage circuit exists. Once the exposure time elapsed, the
information of a pixel is transferred immediately to its circuit and read out from there.
Due to the fact that photosensitive area gets "lost" by the implementation of the circuit
area, the pixels are equipped with microlenses, which focus the light on the pixel.
Digitization Taps
9.2.4
Due the recording speed is faster than the read out speed, the recorded images are
stored until read out in the internal memory of the camera. Thus also can be taken quick
sequences for a short time. If the memory is full, no other images can be stored. Recorded
images at full memory are lost!
The CMOSIS sensors, employed in Baumer HXG cameras can be read out up to 16 chan
-
nels in parallel.
Notice
More channels increase the speed (framerate), but the use of more channels produces
a higher heat generation. Use only the maximum required number of channels!
Notice
Due to sensor characteristics in 12 bit mode only 2 or 4 channels are available.
Readout with 16 Channels
Readout with 8 Channels
Readout with 4 Channels
Readout with 2 Channels
◄ Figure 9
Digitization Tap of the
Baumer HXG cameras
Содержание HXG
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