Title :
On-line Identification of Electro-Conductivity in Electrolytic Solutions
Author :
Inoue, Akira ; Deng, Meixia ; Harada, Tatsuya ; Baba, Yuya ; Morioka, N. ; Mutou, A. ; Ueki, N.
Author_Institution :
Dept. of Syst. Eng., Okayama Univ.
Abstract :
An on-line method is proposed to identify electro-conductivity in electrolytic solutions. The method uses a model of a cell of electrolytic solutions in a micro reactor modeled by an electronic circuit. The circuit consists of a cell part with a resister and a capacitor connected in series and a measurement part having a resister. Then the resistance and the capacitance of the cell part are identified to calculate the electro-conductivity. The identification scheme is the least-square method with a forgetting factor calculated on-line. To avoid the effect of differentiation of measured signals, a filter is added to the identification method. The effectiveness of the proposed control scheme is shown by numerical simulation
Keywords :
capacitance; electric resistance; electrical conductivity; electrolytes; least squares approximations; parameter estimation; electrolytic solution electroconductivity; electronic circuit; forgetting factor; least-square method; microreactor model; on-line identification; parameter identification; Calibration; Capacitance; Circuit testing; Conductivity measurement; Current measurement; Electric resistance; Electric variables measurement; Electrical resistance measurement; Electronic circuits; Pollution measurement; Conductivity; Electrolytic solutions; Parameter identification;
Conference_Titel :
Intelligent Control and Automation, 2006. WCICA 2006. The Sixth World Congress on
Conference_Location :
Dalian
Print_ISBN :
1-4244-0332-4
DOI :
10.1109/WCICA.2006.1713292
