Thus the easiest way to determine a quantitative measurement size is to use the average rectified value.

The average rectified value is mainly used to characterize alternating voltage and alternating current.

In electrical engineering, the average rectified value (ARV) of a quantity is the average of its absolute value.

While the type of measuring system just discussed responds to the average rectified value of an alternating quantity, it is customary to describe the magnitudes of alternating quantities in terms of their r.m.s. values.