Oscilloscope Responsiveness - Agilent Technologies 54622A User Manual

MegaZoom Concepts and Oscilloscope Operation

Oscilloscope Responsiveness

Oscilloscope Responsiveness
An important element of an oscilloscope is how responsive it is to control
changes. After a control is changed, such as the time/division, if you must wait
for the test instrument to respond, the feedback loop between the instrument
and the user can become difficult. You could confuse adjustments because of
the delay between making a change to the instrument and seeing the effect of
that change take place.
MegaZoom Technology
In MegaZoom technology, the primary task of processing acquisition memory
into oscilloscope waveforms using proprietary display techniques is distributed
to waveform translator hardware. The processor's primary responsibility is to
scan the keyboard and manage I/O ports. Because the dedicated waveform
translator can draw waveforms quickly, without interrupting the processor, the
processor is dedicated to the user interface tasks. User input is acted upon
immediately and the oscilloscope display very quickly reflects the user's
changes. This results in the highly-responsive MegaZoom oscilloscope display.
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