Journal of the Korean Society for Nondestructive Testing (비파괴검사학회지)

The Korean Society for Nondestructive Testing (한국비파괴검사학회)
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Design and Fabrication of the Spiral Coils for Guided Wave Magnetostrictive Transducers

  • Choi, Myoung-Seon (Department of Physics, Yeungnam University) ;
  • Heo, Won-Nyoung (Graduate School of Department of Physics, Yeungnam University) ;
  • Jun, Jong-Kil (Undergraduate School of Department of Physics, Yeungnam University)
  • Published : 2008.12.30
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Abstract

We propose rectangular type spiral coils with folded comers for the applications to low frequency guided wave magnetostrictive transducers and describe a method for making the proposed coils from insulated electrical wire such as enameled copper wire. Expressions for the electrical properties of the coils are also presented and compared with experimental measurements. An overlapped-2-channel folded-comer spiral-coil array is fabricated and applied to a magnetostrictive strip transducer generating and detecting fundamental torsional mode guided waves. From the results we conclude that the design and fabrication method make it possible to use the magnetostrictive transducers optimized for various guided wave applications and also will greatly help engineers gain easy access to the optimized transducers.

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References

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