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Compact Wide Frequency Range Fractional-Order Models of Human Body Impedance against Contact Currents

Author

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  • Todd J. Freeborn
  • Ahmed S. Elwakil
  • Brent Maundy

Abstract

Three circuit models using constant phase elements are investigated to represent the human body impedance against contact currents from 40 Hz to 110 MHz. The parameters required to represent the impedance are determined using a nonlinear least squares fitting (NLSF) applied to the averaged human body impedance dataset. The three fractional-order models with 4, 6, and 7 parameters are compared to an already existing integer-order, 11-parameter model. Simulations of the fractional-order models impedance are presented and discussed along with their limitations.

Suggested Citation

  • Todd J. Freeborn & Ahmed S. Elwakil & Brent Maundy, 2016. "Compact Wide Frequency Range Fractional-Order Models of Human Body Impedance against Contact Currents," Mathematical Problems in Engineering, Hindawi, vol. 2016, pages 1-10, February.
    • Handle: RePEc:hin:jnlmpe:4967937
    DOI: 10.1155/2016/4967937
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