Specifications
Display Update Rate
In analog oscilloscopes, the scope is “blind” while the electron beam is reset
to the left side of the screen. Thus, the update rate of an analog scope seems
high because the blind or dead time of the analog scope is low.
High update rate is advantageous because infrequent or random events that
happen while the scope is blind are missed, and thus not displayed. Scope
users often assume that their scope is capturing the entire waveform and that
the update rate is perfect, when the scope display is actually missing some
waveforms.
MegaZoom technology maintains high update rate by using parallel
processing and memory segmentation. The MegaZoom oscilloscope flows
samples into one area of acquisition memory, and in another area they are
read out and processed into displayed samples. By doing this, the processing
part of the update cycle does not miss any waveforms. This results in very
fast update rate and a responsive user interface.
MegaZoom Concepts
Display Update Rate
4-6