Agilent Technologies 42A ユーザーズマニュアル
5- 10
Making Measurements
To capture glitches or narrow pulses with peak detect and infinite persistence
To capture glitches or narrow pulses with peak detect
and infinite persistence
and infinite persistence
A glitch is a rapid change in the waveform that is usually narrow as compared
to the waveform. To capture glitches or narrow pulses:
to the waveform. To capture glitches or narrow pulses:
1 Connect a signal to the oscilloscope and obtain a stable display.
2 To find the glitch, press the
Acquire
key, then, press the
Peak Det
softkey.
54620-series Peak detect acquire mode displays any signal pulse wider than
5 ns, allowing you to find glitches and narrow spikes regardless of sweep speed.
Because of MegaZoom memory, peak detect is only necessary at sweep speeds
of 1 ms/div and slower. At faster sweep speeds, Normal acquire mode can
capture the narrow peaks.
5 ns, allowing you to find glitches and narrow spikes regardless of sweep speed.
Because of MegaZoom memory, peak detect is only necessary at sweep speeds
of 1 ms/div and slower. At faster sweep speeds, Normal acquire mode can
capture the narrow peaks.
At sweep speeds slower than 1 ms/div, the oscilloscope can acquire more
samples than can fit into MegaZoom memory. The oscilloscope selects samples
to store such that no local minimum or maximum wider than 5 ns is missed. In
peak detect mode, narrow glitches and sharp edges are displayed more brightly
than when in Normal acquire mode, making them easier to see.
samples than can fit into MegaZoom memory. The oscilloscope selects samples
to store such that no local minimum or maximum wider than 5 ns is missed. In
peak detect mode, narrow glitches and sharp edges are displayed more brightly
than when in Normal acquire mode, making them easier to see.
54640-series Peak detect acquire mode displays any signal pulse wider than
1 ns, allowing you to find glitches and narrow spikes regardless of sweep speed.
Because of MegaZoom memory, peak detect is only necessary at sweep speeds
of 500
1 ns, allowing you to find glitches and narrow spikes regardless of sweep speed.
Because of MegaZoom memory, peak detect is only necessary at sweep speeds
of 500
µ
s/div and slower. At faster sweep speeds, Normal acquire mode can
capture the narrow peaks.
At sweep speeds slower than 500
µ
s/div, the oscilloscope can acquire more
samples than can fit into MegaZoom memory. The oscilloscope selects samples
to store such that no local minimum or maximum wider than 1 ns is missed. In
peak detect mode, narrow glitches and sharp edges are displayed more brightly
than when in Normal acquire mode, making them easier to see.
to store such that no local minimum or maximum wider than 1 ns is missed. In
peak detect mode, narrow glitches and sharp edges are displayed more brightly
than when in Normal acquire mode, making them easier to see.