I always wondered if I could visualize the magnetic field of the stator, that could be interesting for educational point of view.
I first thought I could create a ferrocell with ferrofluid or iron powder like this, but building one seems very messy.
Then I came across this type of viewers:
You can see the magnetic field but as it stays imprinted in the viewer it’s not very impressive.
Now I received this type of color gradient magnetic field viewer:
It looks better.
Maybe it would look even better with an axial flux pcb stator.
This is how it looks like with a magnetic encoder magnet:
Not super interesting but I thought I would share the results.
