Eddy current power dissipation at sharp corners
Abstract
This paper develops corrections to the impedance per unit length when the conductor cross section includes sharp corners. The case of right internal angle is treated in detail. Corrections are given for all real positive values of the ratio of internal to external magnetic permeabilities. Both the real and imaginary parts of the corrections are determined. Application of the results to a conductor of square cross section is given. Higher order terms are developed and compared to a numerical solution. These higher order terms are generalized to the conductor of rectangular cross section.
 Publication:

IEEE Transactions on Microwave Theory Techniques
 Pub Date:
 February 1994
 DOI:
 10.1109/22.275259
 Bibcode:
 1994ITMTT..42..283W
 Keywords:

 Cross Sections;
 Eddy Currents;
 Electric Conductors;
 Electric Fields;
 Electrical Impedance;
 Magnetic Properties;
 Mathematical Models;
 Numerical Analysis;
 Ohmic Dissipation;
 Corners;
 Correction;
 Impedance Measurement;
 Permeability;
 Rectangular Beams;
 Electronics and Electrical Engineering