Back to results
US 6,583,618 B2Granted
Remote magnetic field material analyzer and method
AssigneeFramatome ANP GmbH
InventorRichard McClelland
Life of this patent
Estimating the term…
Abstract
The present invention provides an apparatus and method for measuring nonferrous electrical resistance measurement. The method includes providing a nonferrous material, inducing a magnetic field on the nonferrous material, measuring the remote magnetic field of the nonferrous material, and comparing the measured remote magnetic field to a standard.
Claims15
A method for measuring hydrogen accumulation of a material comprising:
- providing a nonferrous material from a nuclear fuel rod;
- inducing a magnetic field from the nonferrous material to produce a remote magnetic field;
- measuring the remote magnetic field of the nonferrous material;
- comparing the measured remote magnetic field to a previously measured remote magnetic field standard of a nonferrous material without hydrogen incorporation to determine a change in electrical resistance between the standard and the nonferrous material;
- and
- calculating a hydrogen accumulation in the nonferrous material from the change in the electrical resistance.
3 more elements
An apparatus for measuring hydrogen accumulation in a material from a resistance or the change in resistance of a material comprising:
- a receiving coil circuit comprising an eddy current instrument connected to a RFT receiving coil, the receiving coil circuit configured to determine an incorporation of hydrogen from one of the resistance and the change in resistance;
- and
- an OD circuit comprising an amplifier connected to an OD RFT exciter coil arrangement and frequency generator wherein the receiving coil circuit and the OD circuit are configured to be placed in relative position to one another for sensing of a remote magnetic field generated from the OD circuit.
Dependencies are inferred from the claim text.