RIGOL 
 User’s Guide for DS1000B series 
Voltage Measurements 
 
The DS1000B series oscilloscopes provide automatic voltage measurements 
including Vpp, Vmax, Vmin, Vavg, Vamp, Vrms, Vtop, Vbase, Overshoot and Preshoot. 
Figure 2-131 below shows a pulse with some of the voltage measurement points. 
 
 
 
 
  Figure 2-131 Voltage parameters 
 
Vpp: Peak-to-Peak Voltage. 
Vmax: The maximum amplitude. The most positive peak voltage measured over the   
entire waveform. 
Vmin: The minimum amplitude. The most negative peak voltage measured over the  
entire waveform. 
Vamp: Voltage between Vtop and Vbase of a 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. 
Overshoot: Defined as (Vmax-Vtop)/Vamp, useful for square and pulse waveforms. 
Preshoot: Defined as (Vmin-Vbase)/Vamp, useful for square and pulse waveforms. 
Average: The arithmetic mean over the entire waveform. 
Vrms: The true Root Mean Square voltage over the entire waveform. 
 
 
 
 
 
 Vtop