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Method for Multi-Axis, Non-Contact Mixing of Magnetic Particle Suspensions

United States Patent Application

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Continuous, three-dimensional control of the vorticity vector is possible by progressively transitioning the field symmetry by applying or removing a dc bias along one of the principal axes of mutually orthogonal alternating fields. By exploiting this transition, the vorticity vector can be oriented in a wide range of directions that comprise all three spatial dimensions. Detuning one or more field components to create phase modulation causes the vorticity vector to trace out complex orbits of a wide variety, creating very robust multiaxial stirring. This multiaxial, non-contact stirring is particularly attractive for applications where the fluid volume has complex boundaries, or is congested.
Martin, James E. (Tijeras, NM), Solis, Kyle J. (Rio Rancho, NM)
14/ 957,056
December 2, 2015
STATEMENT OF GOVERNMENT INTEREST [0001] This invention was made with Government support under contract no. DE-AC04-94AL85000 awarded by the U. S. Department of Energy to Sandia Corporation. The Government has certain rights in the invention.