Method for noninvasive determination of a distribution of electrical current and apparatus for the same
OwnerMark J. Hagmanninventor
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Abstract
A method of non-invasive determination of electrical current distribution is disclosed. The method utilizes mathematical calculations on data obtained by a probe with non-uniformly wound detection coil. While non-uniform, the coil winding is specific according to a known and determined function, such as a sinusoidal variation. As a further method, the probe may rotate about an area of interest and the data then may be subjected to a Fourier analysis for further refined results. Multiple coils may be used in the probe, each with a different coil function which could include one uniform coil. Also disclosed is a method for making the coils necessary in the practice of the method.
Claims28
A method for non-invasive determination of electrical current distribution comprising:
- a. inducing an open circuit voltage in a probe having at least one non-ferrous toroidal core about which is a coil having specified non-uniform windings, said toroidal core defining an interior probe window;
- b. measuring said open circuit voltage generated when the probe is proximate a particular region, said particular region being defined by the interior probe window;
- and
- c. mathematically analyzing the measured open circuit voltage to determine current distribution, including current and location of current within the particular region.
A method for non-invasive determination of electrical current distribution comprising:
- a. inducing an open circuit voltage in a probe having at least one non-ferrous toroidal core about which is a coil having specified non-uniform windings, said toroidal core defining an interior probe window;
- b. measuring said open circuit voltage generated when the probe is proximate a particular region, said particular region being defined by the interior probe window;
- and
- c. mathematically analyzing the measured open circuit voltage to determine current distribution within the particular region.
Dependencies are inferred from the claim text.