Novel Deperming Protocols to Reduce Demagnetizing Time and Improve the Performance for the Magnetic Silence of Warships

Magnetic silence of warships is necessary to prevent damage caused by the magnetic mines detecting field warship. Anhysteretic and Deperm-ME protocols are used reduce permanent magnetization among signals. However, they have some disadvantages. Therefore, this paper proposes an effective deperming protocol that easily controlled reduces demagnetization time. A composed two presented using Preisach model manage ensure excellent performance. Each stage has its own advantages considering density distribution. In Stage 1, existing history erased, time reduced. 2, performance improved. The effectiveness was verified via simulations experiments a specimen. When proposed applied, results were when applying Deperm-ME. addition, even if number fields reduced 4 8 in protocol, result maintained. can be obtained required perform reduced, thereby improving operational capability