20
Kit Demo for METRIX Oscilloscopes
Demo:
with:
DOX2025
DOX2040
DOX2100
DOX2xxx
Test Signal
no. 9: Comb of rapid pulses
Nature
Comb of 6 very brief pulses, with a low repetition rate
Specs
Vpp
2V (depending on whether 50-Ohm load or not)-F
8kHz
Oscilloscope Settings
25µs/div., then 10ns/div.-MAIN = 500mV/div.
Trigger
on MAIN, 50% of Vpp
Modes
«LongMem», «Delayed», «ETS»
Objectives
Utility of the ETS for an accurate and precise representation of signals
"Delayed" & "LongMem" mode
a) Adjust the oscilloscope so as to display the pulse trains and a zoomed train of 6 pulses.
Attention, with this type of signal, "Autoset" operation is in principle impossible.
Because of the very brief duration of the pulses (25ns) compared to their repetition interval (
125µs), we need a
ratio of 1000 between the main time base and the "
Delayed
" time base.
b) We can also observe the train of 6 pulses in detail in the ETS mode with a 10ns/div time base.
The example below presents a train of 6 pulses having a duration < 10ns with a rise time < 4ns:
Summary of Contents for DOX 2 Series
Page 1: ...X04128A02 Ed 1 09 15 Demonstration SET for METRIX DOX 2xxx Oscilloscopes User s guide...
Page 9: ...Kit Demo for METRIX Oscilloscopes 7 FFT of the signal on channel CH2...
Page 16: ...14 Kit Demo for METRIX Oscilloscopes Zoom by 1000 in LongMem mode...
Page 27: ...Kit Demo for METRIX Oscilloscopes 25...
