Manual

Functional description
60 Two-channel digital Oscilloscopes
Functional description
VI - MEASUREMENT system (cont'd)
Types of
measurement
Types of
measurement
Description
Vmax
The maximum positive peak of the signal.
Vmin
The minimum negative peak of the signal.
Vpp
Absolute difference between the maximum and minimum
peaks of the signal.
Vtop
Value of the high plateau of the signal.
Vbase
Value of the low plateau of the signal
Vamp
Difference between Vtop and Vbase.
Vavg
Arithmetic mean of the first cycle of the signal.
Mean
Arithmetic mean over the whole signal.
Crms
RMS value of the first cycle of the signal.
Vrms
RMS value of the whole signal.
ROVShoot
Defined as (Vmax-Vtop)/Vamp after a rising edge.
FOVShoot
Defined as (Vmin-Vbase)/Vamp after a falling edge.
RPREshoot
Defined as (Vmin-Vbase)/Vamp before a rising edge.
FPREshoot
Defined as (Vmax-Vtop)/Vamp before a falling edge.
Rise time
Rise time measures the time between 10% and 90%
of the first rising edge of the signal.
Fall time
Fall time measures the time between 90% and 10%
of the first falling edge of the signal.
Bwid
The duration of a pulse train.
Measured on the whole signal.
+Wid
+Width, time interval between the first rising edge and the
next falling edge at 50% of Vamp.
- Wid
-Width, time interval between the first falling edge and the
next rising edge at 50% of Vamp.
+Duty
+Duty is the ratio of the width of the positive pulse to the
period of the signal.
- Duty
- Duty is the ratio of the width of the negative pulse to the
period of the signal.
Phase
The phase lead or lag between the signals present on
channels CH1 and CH2, expressed in degrees, where
360° represent one cycle of the signal.
FRR
The time interval between the first rising edge of source
CH1 and the first rising edge of source CH2
FRF
The time interval between the first rising edge of source
CH1 and the first falling edge of source CH2
FFR
The time interval between the first falling edge of source
CH1 and the first rising edge of source CH2
FFF
The time interval between the first falling edge of source
CH1 and the first falling edge of source CH2
LRR
The time interval between the first rising edge of source
CH1 and the last rising edge of source CH2
LRF
The time interval between the first rising edge of source
CH1 and the last falling edge of source CH2
LFR
The time interval between the first falling edge of source
CH1 and the last rising edge of source CH2
LFF
The time interval between the first falling edge of source
CH1 and the last falling edge of source CH2