Specifications

To capture glitches or narrow pulses with peak detect
A glitch is a rapid change in the waveform that is usually narrow as compared
to the waveform.
Peak detect mode displays any signal wider than 5 ns, allowing you to find
glitches and narrow spikes regardless of the sweep speed.
To capture glitches or narrow pulses:
1
Connect a signal to the oscilloscope and obtain a stable display.
2
Find the glitch. To select peak detect, press
Display
. Then,
press the
Peak Det
softkey.
Peak detect operates at sweep speeds from 50 s/div to 2 ns/div. When
operating, the initials Pk are displayed in the status line in inverse
video. At sweep speeds faster than 2 ns/div, the Pk initials are not
displayed in inverse video, which indicates that peak detect is not
operating.
Use Autostore to:
•
View waveforms that are changing.
•
View and compare waveforms with stored waveforms.
•
View narrow pulses or glitches that occur infrequently but require the
use of sweep speeds outside the range of peak detect.
•
Press
Autostore
.
Autostore retains the glitch on the display in half-bright video.
Making Measurements with HP 54645A/D Oscilloscopes
To capture glitches or narrow pulses with peak detect
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