Open AccessThe Resistance of a Single Protrusion at a constant current
Author(s) -
Ekaterina S. Lyuminarskaja,
S.E. Lyuminarsky,
I.E. Lyuminarsky
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/709/2/022021
Subject(s) - conductor , asperity (geotechnical engineering) , radius , laplace's equation , contact resistance , laplace transform , materials science , mechanics , electrical resistance and conductance , electrical conductor , constant (computer programming) , finite element method , boundary value problem , physics , mathematics , mathematical analysis , composite material , thermodynamics , computer science , layer (electronics) , computer security , programming language
The article deals with a method for measuring resistance of a single spherical asperity. There is obtained an approximate analytical relation between the electrical resistance of a single bump constriction and the contact spot radius, conductor radius, asperity height and width. Electrical resistance is determined from the solution to the Laplace equation for electrical field potential inside a conductor. The calculations are made using the finite-element method.