Magnetic flexure system for determining superconductive properties of a sample
AssigneeCornell Research Foundation, Inc.
InventorFrancis C. Moon
Life of this patent
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Abstract
A cantilever beam is employed to place a magnet in proximity to a sample while the sample is maintained at a superconducting temperature. The magnet causes the sample, assuming it is superconductive, to itself generate a magnetic field which interacts with the magnet. Means are provided for measuring the movement of the cantilever beam, such movement being a measure of the interaction of the sample's magnetic field with the magnet. Several types of cantilever beams are disclosed, one of which is adapted to move in a direction orthogonal to the surface of the sample and another of which is adapted to move parallel to the surface of the sample. This enables the obtaining of quantitative measurements of the bulk properties of high temperature superconducting materials.
Claims7
A system for determining superconductive properties of a sample comprising:
- means for measuring and adjusting the temperature of said sample to a point where said sample is expected to exhibit superconducting properties;
- cantilever beam means for rigidly suspending magnet means at a point of non-contact proximity to said sample to cause said sample to generate a magnetic field if it is superconductive;
- and
- means for measuring the movement of said cantilever beam means when said magnet means is in said non-contact proximity to said sample, said movement of said cantilever beam means being a measure of the interaction of said generated magnetic field with said magnetic means.
Dependencies are inferred from the claim text.