Operators Manual Owner manual

Operator's Manual
List of Standard Parameters
Standard measurement parameters are listed below alphabetically.
NOTE: There may be additional parameters available depending on the software options installed on the
oscilloscope.
Parameter Description
Amplitude
(ampl)
Measures the difference between upper and lower levels in two-level signals. Differs from pkpk in that
noise, overshoot, undershoot, and ringing do not affect the measurement. Amplitude is calculated by using
the formula Top – Base. On signals not having two major levels (such as triangle or saw-tooth waves), the
amplitude parameter returns the same value as peak-to-peak.
Area
Integral of data: Computes area of the waveform relative to zero level. Values greater than zero contribute
positively to the area; values less than zero, negatively.
Base
Lower of two most probable states (higher is top). Measures lower level in two-level signals. Differs from
min in that noise, overshoot, undershoot, and ringing do not affect measurement. On signals not having two
major levels (such as triangle or saw-tooth waves), the amplitude parameter returns the same value as
minimum.
Cycles
(cycles)
Determines number of cycles of a periodic waveform lying between cursors. First cycle begins at first
transition after the left cursor. Transition may be positive- or negative-going.
Delay
Time from trigger to transition: Measures time between trigger and first 50% crossing of specifies signal.
Delay can be used to measure the propagation delay between two signals by triggering on one and
determining delay of other.
Delta Delay
(ddelay)
Computes time between 50% level of two sources.
Dperiod@level
(dper@lv)
Adjacent cycle deviation (cycle-to-cycle jitter) of the period measurement for each cycle in a waveform. The
reference level for this measurement can be specified.
Dtime@level
(dt@lv)
Computes the time between transitions of the selected sources at the specified levels. Only positive going
transitions are counted.
Dtrig Time
(dtrig)
Time from last trigger to this trigger
Duration
(dur)
For single sweep waveforms, dur is 0; for sequence waveforms: time from first to last segment's trigger; for
single segments of sequence waveforms: time from previous segment's to current segment's trigger; for
waveforms produced by a history function: time from first to last accumulated waveform's trigger.
Duty Cycle Percent of period for which data are above or below the 50% level of the signal.
Duty@level
(duty@lv)
Percent of period for which data are above or below a specified level.
Edge@level
(edge@lv)
Number of positive edges in waveform that cross the specified threshold level.
Fall 80-20%
(fall8020)
Duration of pulse waveform's falling transition from 80% to 20% of the amplitude averaged for all falling
transitions between the measurement gates. On signals not having two major levels (triangle or saw-tooth
waves, for example), top and base can default to maximum and minimum, giving less predictable results.
Fall time
(fall)
Duration of pulse waveform's falling transition from 90% to 10% of the amplitude averaged for all falling
transitions between the measurement gates. On signals not having two major levels (triangle or saw-tooth
waves, for example), top and base can default to maximum and minimum, giving less predictable results.
Fall@level
(fall@lv)
Fall at level: Duration of pulse waveform's falling edges between user-specified transition levels.
922499 Rev B
57