Magnetic Flux Coil

Both Tesla meters and fluxmeters can measure the residual magnetic induction strength of magnets, but when measuring small magnets, using a Hall probe (Tesla meter) must accurately remove the distance between the probe and the surface of the sample, otherwise the measurement error will be large. The use of Helmholtz coils in conjunction with a magnetometer effectively solves this problem. Helmholtz coils are used to generate a uniform magnetic field, and conversely, they can also be used for open circuit sample magnetic flux measurement. The measured magnet is moved out of the center of the coil, and the magnetic flux in the Helmholtz coil changes, inducing voltage and transmitting it to the magnetometer. The magnetometer obtains the change in magnetic flux through data processing. The helmholtz coil used in this application, we called it Magnetic Flux Coil.