Title :
Optimized Microwave Sensor for Online Concentration Measurements of Binary Liquid Mixtures
Author :
Kapilevich, Boris ; Litvak, Boris
Author_Institution :
Dept. of Electr. & Electron. Eng., Ariel Univ. Center of Samaria, Ariel, Israel
Abstract :
This paper describes microwave sensors designed for online measurements concentration of binary liquid mixtures. It is based on the cylindrical resonator having axial glass tube filled with the liquid under test. The input coupling element has been optimized using 3D EM simulator (CST Microwave Studio) in order to reach maximum sensitivity and concentration resolution. The sensor can be calibrated for a variety of organic and inorganic binary mixtures. Examples of operation of the sensor with mixtures such as water-methanol, magnesium-sulphate, and water-sodium chloride-glucose are reported.
Keywords :
chemical sensors; chemical variables measurement; liquid mixtures; microwave detectors; 3D EM simulator; axial glass tube; binary liquid mixtures; cylindrical resonator; magnesium-sulphate; online concentration measurements; optimized microwave sensor; water-methanol; water-sodium chloride-glucose; Couplings; Electron tubes; Microwave measurements; Reflection; Resonant frequency; Sugar; Temperature measurement; Binary liquid mixtures; concentration control; microwave sensors; resonators;
Journal_Title :
Sensors Journal, IEEE
DOI :
10.1109/JSEN.2011.2149517
