Title :
Study of Dual Open Ended Coaxial Sensor System for Calculation of Phase Using Two Magnitudes
Author :
Kim Yee Lee ; Boon Kuan Chung ; Kok Yeow You ; Ee Meng Cheng ; Abbas, Zia
Author_Institution :
Dept. of Electr. & Electron. Eng., Univ. Tunku Abdul Rahman, Kuala Lumpur, Malaysia
Abstract :
A dual open ended coaxial sensor system to determine complex permittivity was studied in detail. This paper focuses on determination of a reflection coefficient phase from two magnitudes using modified capacitance model from 300 kHz to 8 GHz. The phase information can then be used for calculation of the sample´s complex permittivity. Factors such as range and limitation of the model, sample´s permittivity, operating frequency, and size of sensor were investigated. Sensitivity of calculated phase with respect to small changes in measured magnitude was carried out.
Keywords :
capacitance; electric sensing devices; permittivity measurement; reflectivity; complex permittivity; dual open ended coaxial sensor system; frequency 300 kHz to 8 GHz; modified capacitance model; operating frequency; phase calculation; phase information; reflection coefficient phase; sensitivity; sensor size; two magnitudes; Frequency measurement; Permittivity; Permittivity measurement; Phase measurement; Reflection coefficient; Sensitivity; Sensor systems; Dual open ended coaxial sensor; modified capacitance model; phase determination; reflection coefficient;
Journal_Title :
Sensors Journal, IEEE
DOI :
10.1109/JSEN.2013.2281416
