Design of a Test Setup to Measure Magnetic Signature Reduction

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientific

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Abstract

In order to avoid detection by sea mines, the magnetic signature of merchant and naval vessels can be reduced by running a current through a set of on-board copper coils. This process is called degaussing. Studies have shown that the volume, weight and energy losses of a degaussing system can be reduced by replacing the copper coils with high temperature superconductive (HTS) coils. Moreover, since the technology and production of HTS has matured and the material is highly available, the use of HTS for degaussing coils is a serious option. As a preliminary study towards an HTS degaussing test setup, this paper presents the design of a table-top demonstration with copper degaussing coils. The goal of the demonstration is to measure the magnetic signature and the magnetic signature reduction of a cylindrical object. The design choices of the test setup and the measuring system are discussed. The magnetic signature of the table-top model is calculated as well as the optimal placement of the degaussing coils and the optimal degaussing currents. These results are compared with measurements of the magnetic flux density around the demonstrator.
Original languageEnglish
Title of host publicationConference proceedings of ICMET OMAN 2019
Pages232-236
Number of pages5
DOIs
Publication statusPublished - 2019
Event International Conference on Marine Engineering and Technology Oman 2019 - Muscat, Oman
Duration: 5 Nov 20197 Nov 2019

Conference

Conference International Conference on Marine Engineering and Technology Oman 2019
Abbreviated title2019 ICMET Oman
CountryOman
CityMuscat
Period5/11/197/11/19

Keywords

  • degaussing
  • deperming
  • magnetic signature
  • high temperature superconductor (HTS)
  • magnetic field measurements

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