TDS3000B Serie s User Manual
Glossary- 1
Glossary
AC Coupling
A mode that bl ocks the DC component of a signal but passes the
dynamic (AC) com ponent of the signal. Useful for observing an
AC signal tha t is normall y ridi ng on a DC signal.
Acquisition
The process of sampling signals from input channels, digitizing
the samples, processing the results into data points, and
assembling the data point s into a waveform record. T he
waveform record is st ored in memory.
Active Cursor
The cursor that moves when you adjust the genera l purpose
knob. The @ readout on the display shows t he position of the
active cursor.
Aliasing
A false representation of a signal due to insufficient sampling of
high frequencies or fast transitions. A condition that occurs
when an oscilloscope digitizes at an effective sampling rate that
is too slow to reproduce the input signal. The waveform
displayed on the oscilloscope may have a lower frequency than
the actual input signal.
Application Module
A small module that you plug in t o the front panel to add
capabilities to your oscilloscope. You can use up to four
application modules at one time.
Application P ackage
An optional package that may include an application module, a
firmware upgrade, and manuals that add capabilities to your
oscilloscope.
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