Title :
Capacitance calculation for anisotropic medium of liquid crystal chemical and biological sensor
Author :
Hassanzadeh, Alireza ; Lindquist, Robert G.
Author_Institution :
ECE Dept., Univ. of Alabama in Huntsville, Huntsville, AL, USA
Abstract :
In this paper a program has been developed that can calculate capacitance of arbitrary shape electrodes for anisotropic medium of liquid crystal chemical and biological sensors. Since for anisotropic materials permittivity is dependent on orientation of molecules, certain electrode shapes can be designed that have special features for sensor detection. For proof of concept a circular shape electrode has been introduced that its capacitance is independent of planar angle change of the LC molecules.
Keywords :
anisotropic media; biomedical engineering; capacitance; capacitance measurement; chemical sensors; electrochemical electrodes; liquid crystal devices; liquid crystals; molecular orientation; permittivity; anisotropic medium; arbitrary shape electrodes; biological sensor; capacitance calculation; chemical sensor; liquid crystal; molecular orientation; permittivity; Capacitance; Capacitance measurement; Electric fields; Electrodes; Liquid crystals; Permittivity; Shape;
Conference_Titel :
Southeastcon, 2011 Proceedings of IEEE
Conference_Location :
Nashville, TN
Print_ISBN :
978-1-61284-739-9
DOI :
10.1109/SECON.2011.5752959
