- Joined Sep 28, 2021
Hi all ,
This is about Hall Effect from here. The voltage across a metal will change based on the strength of the magnetic field. I am wondering whether this will be accurate in reading small magnetic field such as the earth's magnetic field to point to the NORTH. From my knowledge, since the earth magnetic field is small and weak, it is very difficult to read on a multimeter, so perhaps we can amplify that small voltage to a big voltage by using op-amp. Is this a possible solution because I am trying to make my own DIY magnetometer ?