Imagine you have a toy that makes different noises, including loud and soft noises. Sometimes the toy makes noises that are not consistent; they might be louder at some moments and quieter at others.
Now, imagine you have a special tool called "true rms converter." This tool helps you measure the average loudness of all the noises the toy makes, even when the sounds are not consistent.
To do this, the true rms converter first listens to the toy's noises and measures the loudness of each one. But instead of simply adding up all the measurements, which wouldn't give an accurate reading, the tool takes into account how long each noise lasted for and how often each type of noise occurred. Then, the tool uses a special formula to calculate the toy's average loudness over a certain period of time.
This makes it possible to get an accurate measurement of how loud the toy is overall, even though some noises were louder than others.
In the same way, a true rms converter is a tool that measures the average power of an electrical signal, even when the signal is not consistent. It takes into account both the amplitude (or height) of the signal and how long each variation in the signal lasts. This helps us understand how much electrical energy is being transmitted, even when the signal is not a perfect sine wave.