Tus neeg siv phau ntawv
- 62 -
Automatic measurement of the voltage parameters
The oscilloscope provides automatic voltage measurements including Vpp, Vmax, Vmin, Vavg, Vamp, Vrms,
Vtop, Vbase, Overshoot and Preshoot. The image below shows a pulse with some voltage measurement
points.
.
Mean: Arithmetic mean value over the entire waveform.
PK-PK: Peak-to-peak tension.
Max: Maximum amplitude. The highest positive peak voltage measured over the entire curve.
Min: Minimum amplitude. The highest negative peak voltage measured over the entire curve.
Vtop: Flat-top voltage of the curve, useful for square/pulse signals.
Vbase: Flat-base voltage of the curve, useful for square/pulse signals.
Vamp: Voltage between Vtop and Vbase of a curve.
Overshoot: (Overshoot) Defined as (Vmax-Vtop)/Vamp, useful for square wave and pulse signals.
Preshoot: Defined as (Vmin-Vbase)/Vamp, useful for square and pulse signals.
Cycle RMS: True Root Mean Square voltage over the entire length of the period of the current waveform.
Cursor RMS: True Root Mean Square voltage over the range of two cursors.
Max
Min
PK-PK
Vtop
Vbase
Vamp
Overshoot
Preshoot