Hello, I saw a video about PCB motors on YouTube.
Yes, it looks like a BLDC motor to me.
It seems difficult to attach a position sensor like a magnetic encoder to such a small motor. However, I was thinking of one last option: what about using a variable capacitor?
Structurally, a capacitor is simply two sheets of metal placed close together.
The capacitance changes depending on the overlapping area of the two plates due to rotation, and this can be detected.
However, I’ve heard online that capacitance is susceptible to noise but, it can be manufactured like a PCB.
I don’t want to dismiss this possibility.
As long as it’s shielded properly, will there be no noise? In your opinion, how likely is it that a variable capacitor could be used in a motor like this?