When I got it correctly, one can get use of certain offsets when using special designed hall sensors where several ones are arranged in a certain way like being orientated in 45° to each other. Respectively, I guess, it is one sensor but with several connectors(?).

My question is: How many sensors/connectors are necessary and why? I'm not sure about these 45°, I think I also read that it is basically done such that the regular current connectors and hall connectors are just swapped frequently. That would mean that there is not really any (hardware) adjustment at all. Did I get that right? If so, how is that already sufficient to get rid of offsets/external influences?

Note: In my documents (which are in a different language) this principle is under the term

spinning current principle

but when I google that it looks way more like a special solid physics effect or so.

I would like to know how it is possible to remove (external) offsets like temperature and unwanted magnetic fields when using a hall sensor. As far as I know this should basically be possible by using several hall sensors and rearrange them in a certain way. I think it is even possible to swap the current and hall connectors but I'm not sure about that. Note: In my documents (which are in a different language) this principle is under the term

spinning current principle

but when I google that it looks way more like a special solid physics effect or so.