Electromagnetic tensor spectroscopy for sorting of shredded metallic scrap

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With the continuous increase in automobile use, there are now over 1 billion vehicles in use globally, millions of which are reaching their end of service life throughout the world. The automotive waste is a major source of materials in shredding plants and therefore, the appropriate recycling of end-of-life vehicles (ELV) has become a major concern. This paper presents a novel design of an electromagnetic tensor spectroscopy (EMTS) sensor system, which employs an electromagnetic array to determine the electrical conductivity of each metal piece, which can then be used to sort the metal type. This study reports the development, theoretical basis and performance of the EMTS sensor system. The results show that the inductive coil system performs adequately and are able to obtain spectra at high-speeds/throughput with good signal to noise.

Original languageEnglish
Title of host publicationIEEE SENSORS 2017 - Conference Proceedings
Number of pages3
ISBN (Electronic)9781509010127
Publication statusPublished - 21 Dec 2017
Event16th IEEE SENSORS Conference, ICSENS 2017 - Glasgow, United Kingdom
Duration: 30 Oct 20171 Nov 2017


Conference16th IEEE SENSORS Conference, ICSENS 2017
Country/TerritoryUnited Kingdom


  • Electrical Conductivity
  • Electromagnetic Tensor Spectroscopy (EMTS)
  • End-of-Life Vehicles (ELV)
  • Metal Sorting and Identification
  • Non-Ferrous Metal Waste


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  • Electromagnetic Sensing Group

    Peyton, A., Fletcher, A., Daniels, D., Conniffe, D., Podd, F., Davidson, J., Anderson, J., Wilson, J., Marsh, L., O'Toole, M., Watson, S., Yin, W., Regan, A., Williams, K., Rana, S., Khalil, K., Hills, D., Whyte, C., Wang, C., Hodgskin-Brown, R., Dadkhahtehrani, F., Forster, S., Zhu, F., Yu, K., Xiong, L., Lu, T., Zhang, L., Lyu, R., Zhu, R., She, S., Meng, T., Pang, X., Zheng, X., Bai, X., Zou, X., Ding, Y., Shao, Y., Xia, Z. & Zhang, Z.

    1/10/04 → …

    Project: Research

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