Welcome to the PF.Hi
We attempted to trace the B-H curve of soft magnetic material by using principles of electromagnetic induction. Attached with this is the curve obtained. I am unable to figure out why am I getting the two loops at the end?
(I assume your amplifier has high input impedance so there's not much current in sense coil compared to excitation coil.)The emf induced in the secondary coil is given to the power amplifier and then to the integrator.
i doubt you could saturate it but-How do I conclude that my material has reached saturation?