Abstract
The Dielectric Losses associated with inductors play more considerable role at higher frequencies. Parasitic capacity determines the magnitude of these losses. The permeability is one of the factors that affect self-inductance of a solenoid directly. Change of medium from free space to any other element like iron or plastic may change the behavior of solenoid. Human hair is primarily composed of keratin. Keratin is considered as a good insulator. However an electric charge gained by the hairs due to friction and this phenomenon is called tribo-electric effect. It gives hair an ability to become charged with static electricity. The scenario tested with coils is wrapped around human hairs and the air between them as a medium. It is hypothesized that replacement of iron by human hair will vary the self-induction. The reference or test validation platform for the experiment was an air and iron core inductor. The reason behind this choice was its wide use in various applications like power supplies, metal detectors, car ignition coils and even in high speed digital systems. The observed values of induced e.m.f for the scenario are used to analyze the deviation in self-Inductance phenomenon. The theoretical model for the air and iron core solenoid is also compared with the resulting values to calculate and reaffirm the permeability values of the human hair especially for South Asian ethnic region.
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Amir, S., Chowdhry, B.S. & Aamir, M. Proposed Inductor Design for High Speed Digital Communication Systems through Divergence Analysis of Self Inductance and Variability in Permeability Values of Unaltered Human Hair. Wireless Pers Commun 76, 479–487 (2014). https://doi.org/10.1007/s11277-014-1719-x
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DOI: https://doi.org/10.1007/s11277-014-1719-x