Title :
Determination of equivalent circuit parameters of porous dielectric humidity sensors
Author :
Falk, A.E. ; Lacquet, B.M. ; Swart, P.L.
Author_Institution :
Rand Afrikaans Univ., Johannesburg, South Africa
Abstract :
A humidity sensitive porous dielectric is modelled by an equivalent electrical circuit consisting of four passive elements. The model parameters are obtained by applying a nonlinear curvefit procedure on the frequency dependence of the measured capacitance and parallel resistance as a function of relative humidity.
Keywords :
dielectric devices; electric sensing devices; equivalent circuits; humidity measurement; modelling; capacitance; equivalent circuit parameters; equivalent electrical circuit; frequency dependence; model parameters; nonlinear curvefit procedure; parallel resistance; porous dielectric humidity sensors; relative humidity;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19920103
