2011 | OriginalPaper | Chapter
The Skin’s Electrical Time Constants
Authors : N. M. Birlea, S. I. Birlea, E. Culea
Published in: International Conference on Advancements of Medicine and Health Care through Technology
Publisher: Springer Berlin Heidelberg
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We have studied the electrical time constants of human skin potential in response to a constant current impulse (0.4-16 mA/100
μ
s). Three relaxation times were found with values in the range 10-40
μ
s, 100-200
μ
s and 1-4 ms. By correlating the time constants with the electrical model of the skin we found that stratum corneum has a nonlinear resistance that diminishes and a nonlinear capacitance that increases with increasing values of current.