Glossary
Glossary–4
TDS3000 Series User Manual
Edge Trigger
Triggering that occurs when the oscilloscope detects the source
passing through a specified voltage level in a specified direction
(the trigger slope).
Envelope Acquisition Mode
A mode in which the oscilloscope acquires and displays a
waveform that shows the variation extremes of several
acquisitions.
External Trigger
Triggering that occurs when the oscilloscope detects the external
input signal passing through a specified voltage level in a
specified direction (the trigger slope).
Floating Measurements
Voltage measurements where the reference voltage is not earth
ground.
General Purpose Knob
A knob on the front panel that you can use to set parameters, for
example, cursor position. The specific parameter assigned to the
general purpose knob depends on other selections.
Gray Scale
The waveform display capable of showing points at different
intensities, depending on the frequency of their occurrence.
Color “gray scale” consists of light and dark shades of the color.
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