Magnetic induction strength on surface of a ferro-medium circular cylinder

- An analytical integral expression of relation between magnetic flux leakage (MFL) and magnetization of a ferro-medium circular cylinder is found.
- Magnetization of material can be predicted by the MFL on surface the circular cylinder.

Based on the Ampere molecular current hypothesis and the Biot-Savart law, a magnetic model on the metal magnetic memory (MMM) testing of a specimen is proposed. Relation between magnetic flux leakage (MFL) and magnetization of a ferro-medium circular cylinder is set up. We can predict magnetization of material according to the MFL on surface of the circular cylinder.