Demagnetizing Experiment of Magnetism-Concealed Tank Based on Smart Materials

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Demagnetizing Experiment of Magnetism-Concealed Tank Based on Smart Materials

Huang, Ying

The core component - a set of coaxial densely winded degaussing loops of a magnetism-concealed tank is designed and made by experiment method. From the data, it can be concluded that the coaxial densely winded degaussing loops can eliminate the tanks magnetic field signs which are engendered by magnetization in the earth magnetic field, specially, the demagnetizing effect near the axis is more obvious. It should be paid attention to the direction of the demagnetizing electric current in experimentation, another important factor to get optimal demagnetizing effect is to seize the right time of demagnetizing electric current. If a demagnetizing electric current is kept too long, as can be seen from the table, the tanks magnetic field signs will be strengthened owing to the counter-rotational magnetization, which accords with the electromagnetic theories. In addition, the degaussing loops work characteristics are given in our auxiliary experiment. In conclusion this experiment design method provides a sustain for magnetism protection theory of equips, and a train of thought is offered for both the magnetism-concealed tanks designing and researching through the experiment process.