A novel current density distribution sensor for use in parallel plate transmission lines

• Published in: 2014 17th International Symposium on Electromagnetic Launch Technology pp. 1 - 6
• Main Authors: Omar, K., Graneau, N., Novac, B., Smith, I.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01-07-2014
• Subjects: Arrays; Current distribution; Inductance; Probes; Stripline; Transmission line measurements
• DOI: 10.1109/EML.2014.6920696

As part of an on-going electromagnetic flyer plate research programme, it has been established that a method to determine the current distribution (or at least confirm its uniformity) is now required to establish predictable acceleration of the flyer plate. To achieve this diagnostic capability, a bespoke sensor array has been developed, termed the MIDOT (a relative Mutual Inductance sensor array). It has been specifically developed as a method of determining the current density distribution across a thin, close coupled, parallel plate transmission line. This novel sensor has been developed to a point where the proof of principle has been successfully demonstrated on a low voltage test bed, with some preliminary high voltage shots being carried out on a bespoke experimental arrangement prior to it being fielded on the flyer plate accelerator facilities at both Loughborough University and AWE.