METHOD FOR NONINVASIVE DETERMINATION OF A DISTRIBUTION OF ELECTRICAL CURRENT AND APPARATUS FOR THE SAME
First Claim
1. 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 probe defining an interior probe window;
b. using the probe and measuring said open circuit voltage generated in a particular region; and
c. mathematically analyzing the measured open circuit voltage to determine current distribution, including current and location of current within the particular region.
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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.
19 Citations
28 Claims
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1. A method for non-invasive determination of electrical current distribution comprising:
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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 probe defining an interior probe window; b. using the probe and measuring said open circuit voltage generated in a particular region; and c. mathematically analyzing the measured open circuit voltage to determine current distribution, including current and location of current within the particular region. - View Dependent Claims (2, 3, 4, 5)
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6. A method for non-invasive determination of electrical current distribution comprising:
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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 probe defining an interior probe window; b. using the probe and measuring said open circuit voltage generated in a particular region; and c. mathematically analyzing the measured open circuit voltage to determine current distribution within the particular region. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A probe for determining electrical current distribution comprising:
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a. at least one non-ferrous toroidal core; and b. a coil wound about said toroidal core having a specified non-uniform winding. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28)
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Specification