Hi, I have 2 coils arranged next to each other. One of them is used to generate alternating magnetic field at several Hz, and the other one also generate alternating magnetic field but at higher frequency (several kHz). Are there any magnetic sensors that can measure only the high-frequency magnetic field when both of the magnetic fields are being generated OR are there any possible ways to filter (or determine) the high-frequency (kHz) one? Thank you very much! Best wishes!