|
Relations between RMS voltage and peak-to-peak voltage
Relations between RMS voltage and peak-to-peak voltage
D.E.V.I.C.E. is an encyclopedia of terms used by manufacturers of test and measurement equipment. T&M Atlantic created this service to better explain the functionality of instruments it offers, and to highlight the latest developments in the world of measurement equipment. We are using such tools as animation to bring words and pictures to life and to create not just an understanding but also an appreciation for technology that goes into the design of every instrument.
D.E.V.I.C.E. on Request
If you are searching for a particular term or definition, please contact us and our engineers will be glad to explain it to you.
The illustration below shows that the wall socket voltage is actually 120 V and "formally" the peak-to-peak voltage is 339.36 V. You can see this value on your oscilloscope in the automatic measurements mode with Vpp mode ON.
However in reality, there are no such values in a wall outlet. This is due to the fact that there is one Hot (Line) wire in the wall socket, and the second is Neutral, relative to which the Hot (Line) voltage changes. Thus, only Vmax can be on the Hot (Line) wire: +169.68 V or –169.68 V. Obviously, these values change with a frequency of 60 Hz.
Some common multimeters, for example AKTAKOM AM-1060 DMM and those with Peak or Mix/Max mode can show close Vmax values. But keep in mind that these multimeters operate slower than 60 Hz and therefore the displayed values are approximate.
120V / 120V Peak(-) / 120V Peak(+)
Back to the list
Rating Search by section
D.E.V.I.C.E. services
|
|
