By convention, the reference electrode is the standard hydrogen electrode (SHE). It is defined to have a potential of zero volts. The electrode potential has its origin in the potential difference developed at the interface between the electrode and the electrolyte.

Do electrodes measure voltage?

Why reference electrodes

The current flows through the force leads, and the voltage is measured between the two sense leads. ... If you are an electrochemist, you are probably familiar with the use of reference electrodes already.

What is electrode voltage?

Electrode potential for any given electrode is the voltage or potential difference of a cell assembled from a standard hydrogen electrode and the given electrode with the potential that is being defined.