Abstract
This study explores the magnetic levitation (maglev) characteristics of superparamagnetic iron oxides (Fe3 O4 ) used as motor-driven rotors in gyroscopes under low-alternating magnetism. Herein, superparamagnetic Fe3 O4 was synthesized in a nanopowder form using the sol–gel method. The maglev force that stabilizes a rotating gyroscope depends on the rotation speed. This force exhibits a wide range of values. The stability of the synthesized superparamagnetic Fe3 O4 increases with its size. The rotation stability was measured based on the size of a red laser spot and was found to depend on the rotation speed. Under a low magnetic field, superparamagnetic materials exhibit high stability. Herein, the superparamagnetic phase exhibits excellent stability. With increasing rotation speed, the superparamagnetic material exhibits strong magnetization. The nanoiron oxide is used to dynamically measure crystallinity and uniformity. Additionally, inversion recovery shows improved gyrostabilization for the superparamagnetic material.
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