Datasheet

41
PK-PK: Peak-to-Peak Voltage.
RMS: The true Root Mean Square voltage over the entire waveform.
Max: The maximum amplitude. The most positive peak voltage measured over the entire
waveform.
Min: The minimum amplitude. The most negative peak voltage measured over the entire
waveform.
Vtop: Voltage of the waveform's flat top, useful for square/pulse waveforms.
Vbase: Voltage of the waveform's flat base, useful for square/pulse waveforms.
Vamp: Voltage between Vtop and Vbase of a waveform.
OverShoot: Defined as (Vmax-Vtop)/Vamp, useful for square and pulse waveforms.
PreShoot: Defined as (Vmin-Vbase)/Vamp, useful for square and pulse waveforms.
Cycle RMS: The true Root Mean Square voltage over the first entire period of the waveform.
Cursor RMS: The true Root Mean Square voltage over the range of two cursors.
The automatic measurement of time parameters
The oscilloscopes provide time parameters auto-measurements include Period, Frequency,
Rise Time, Fall Time, +D width, -D width, +Duty, -Duty, Delay A→B , Delay A→B , and
Duty cycle.
Figure 0-8 shows a pulse with some of the time measurement points.
Figure 0-8
Rise Time: Time that the leading edge of the first pulse in the waveform takes to rise from
10% to 90% of its amplitude.
Fall Time: Time that the falling edge of the first pulse in the waveform takes to fall from 90% to
10% of its amplitude.
+D width: The width of the first positive pulse in 50% amplitude points.
-D width: The width of the first negative pulse in the 50% amplitude points.
+Duty: +Duty Cycle, defined as +Width/Period.
-Duty:-Duty Cycle, defined as -Width/Period.
Delay A→B : The delay between the two channels at the rising edge.
Delay A→B : The delay between the two channels at the falling edge.
Screen Duty: Defines as (the width of the positive pulse)/(Entire period)
Phase: Compare the rising edge of CH1 and CH2, calculate phase difference of two channels.