Cyclic voltammetry refers to controlling the potential under study to scan from the initial potential to the reverse potential at a constant speed, changing the scanning direction, scanning back to the initial potential at the same speed, and continuing to reverse the potential, repeatedly scanning, and recording the current-potential The curves are called cyclic voltammetry lines.

To measure the chemical impedance at complex frequencies, a frequency response analyzer, known as the digital version of the lock-in amplifier, is used to make the frequency sweep easier to use.