Non-homogeneous material magnetic flux sensor and method
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United States of America Patent
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Sep 24, 2002
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N/A
app pub date -
Dec 13, 1999
filing date -
Dec 13, 1999
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Abstract
A sensor comprises a magnetic flux divider and a winding. The magnetic flux divider comprises first and second magnetic paths through which magnetic flux flows. The magnetic flux divider divides the magnetic flux between the first and second magnetic paths as a function of a total amount of magnetic flux flowing through the magnetic flux divider. The winding produces a signal that is indicative of the total amount of magnetic flux flowing through the flux divider based on the operation of the flux divider. A method of sensing a parameter comprises providing a material with a permeability that varies in accordance with an amount of magnetic flux passing through the material; and acquiring information indicative of the permeability of the material, the permeability of the material being indicative of the parameter. The sensor and method can be utilized to acquire information pertinent to another parameter of ultimate interest, such as information pertaining to a current flow in an electrical circuit.
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