How do cars measure fuel level accurately when the fluid is constantly sloshing around?

Question

How do cars measure fuel level accurately when the fluid is constantly sloshing around?

In: 2855

Answer 1

If you have a large bucket and shake it, the water level will slosh quite significantly compared to if you had a 1cm test tube. For the same tipping movements the sloshing is much less.

Put that test tube inside your fuel tank along with your measuring device, when the bulk of the fuel is sloshing a lot, the tube where the measurement is taking is sloshing only a tiny amount