User Manual

103
8.1 Type of Measurement
Press Type to open the menu of all possible measurements. Use the Universal Knob to select
which the desired parameters.
Voltage Measurements
Voltage measurements include 19 kinds of voltage parameter measurements as detailed in the
following table:
Type
Description
Peak-Peak
The peak-to-peak value is the difference between Maximum and Minimum
values.
Maximum
Maximum is the highest value in the waveform display.
Minimum
Minimum is the lowest value in the waveform display.
Amplitude
The Amplitude of a waveform is the difference between its Top and Base
values.
Top
The Top of a waveform is the mode (most common value) of the upper part
of the waveform, or if the mode is not well defined, the top is the same as
Maximum.
Base
The Base of a waveform is the mode (most common value) of the lower part
of the waveform, or if the mode is not well defined, the base is the same as
Minimum.
Mean
The arithmetic over the entire waveform.
Cycle mean
The arithmetic mean over the first cycle of the waveform
Stdev
Standard deviation of all data values
Cycle stdev
Standard deviation of all data values in the first cycle
RMS
The Root Mean Square voltage over the entire waveform.
Cycle RMS
The Root Mean Square voltage of the first cycle in the waveform.
FOV and ROV
Overshoot is distortion that follows a major edge transition expressed as a
percentage of Amplitude. ROV means rising edge overshoot and FOV means
falling edge overshoot.
FPRE and
RPRE
Falling pre-shoot and rising pre-shoot. Pre-shoot is distortion that precedes
a major edge transition expressed as a percentage of Amplitude. The X
cursors show which edge is being measured (edge closest to the trigger
reference point).
Level@Trigger
The voltage level of at the trigger point.
+SR
Slew rate on rising slope
-SR
Slew rate on falling slope
Table 9 - Voltage measurements