Any suggestions for a gauss meter circuit? I've been experimenting with a linear Hall effect sensor. I can get the darn thing to work, but I've been trying to use an op-amp to get a "0" reading with no input; a "+" reading on one pole, and a "-" reading from the other pole. A preference would be to use a single-supply op-amp. I've got the circuit to work with a dual-supply op-amp. But the whole thing would be so much simpler with one 9 VDC battery rather than two.
In advance, thanks for your help.
In advance, thanks for your help.