Title :
Design of multichannel fringing electric field sensors for imaging. Part II. Numerical examples
Author :
Li, X.B. ; Kato, C. ; Zyuzin, A.S. ; Mamishev, A.V.
Author_Institution :
Dept. of Electr. Eng., Washington Univ., Seattle, WA, USA
Abstract :
Two concentric-ring fringing electric field (FEF) sensors are designed for dielectrometry measurement of round samples, as a specific example to further illustrate the design principles for FEF sensors introduced in part I of the paper. Finite element simulations are carried out to analyze and compare such sensor performance characteristics as signal strength and penetration depth. The effects of changes in sensor substrate thickness and shielding electrode width are also evaluated. Simulation results show a clear dependence between these design parameters and sensor performance.
Keywords :
capacitive sensors; electrodes; finite element analysis; image sensors; capacitive sensors; dielectrometry measurement; finite element simulations; multichannel fringing electric field sensors; penetration depth; sensor substrate thickness; shielding electrode; signal strength; Capacitance; Capacitive sensors; Design automation; Electrodes; Finite element methods; Geometry; Image sensors; Laboratories; Moisture measurement; Sensor phenomena and characterization;
Conference_Titel :
Electrical Insulation, 2004. Conference Record of the 2004 IEEE International Symposium on
Print_ISBN :
0-7803-8447-4
DOI :
10.1109/ELINSL.2004.1380619
