How to Measure Voltage with an Oscilloscope Oscilloscopes help you visualize your electrical signal.

At their core, oscilloscopes display a plot of voltage vs. time for one or more signals. Mean and average voltages-- Oscilloscopes can calculate the average or mean of your signal, and it can also tell you the average of your signal's minimum and maximum voltage. You need just to measure the voltage, rest values are obtained by calculation. When to Use an O-Scope . One technique is to measure the differential voltage drop across such a resistor.

Voltage is the amount of electric potential between the two points in a circuit. Most oscilloscopes only directly measure voltage, not current, however there are a couple of ways it is possible to measure current using a scope: Measure the voltage dropped across a shunt resistor – some power supply designs may have shunt resistors built into the design for feedback. The oscilloscope is used to measure the electrical signal which is displayed on a graph of plots with voltage vs. time was known as a waveform. These are generally low-value resistors, …