I'm trying to buy a brushless DC motor for a hobby project, and I found a nice one, which lists the information table I pasted at the bottom of this message.
As you can see at the top of the table you can choose between one with, and one without a Hall sensor. So I was reading up on Hall sensors, and I read that Hall sensors can measure the strength and direction of an electromagnetic force. And (as far as I understand) this can be used for measuring the position and speed of rotation within a Brushless DC motor.
My questions are:
- Am I correct in what I say above?
- I also need a rotary encoder for my motor. Can a Hall sensor be used for the same purpose as a rotary encoder?
- Can a motor with a Hall sensor be reversed or does that have nothing to do with it?
- Or am I wrong here and is the Hall sensor used for something completely different?