# Bode Plot

Last updated: December 9, 2016

## What Does Bode Plot Mean?

A Bode plot is generally used in electrical engineering and control theory and is represented by a graph depicting the frequency responses of a particular system. It is an important tools used in linear time invariant systems (LTI systems) for showing its gain or the magnitude and the phase response with respect to different operating frequencies.

## Corrosionpedia Explains Bode Plot

A Bode plot is drawn as a combination of a magnitude vs. frequency plot and a phase response vs. frequency plot. The frequency is plotted against a logarithmic frequency axis (x axis).

On the x axis (frequency axis), every tick mark denotes a power of 10 times the previous value. For example, in a Bode plot the marker values might go from 10-1, 100, 101, 102, 103,…so on. On a Bode plot, since each tick mark is a power of 10, it is known as a decade and it should be noted that as we move towards right side on the Bode plot, the “length” of a decade decreases. 