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.

Volume

1

fYear

0

fDate

0-0 0

Firstpage

4786

Lastpage

4789

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Control and Automation, 2006. WCICA 2006. The Sixth World Congress on

Conference_Location

Dalian

Print_ISBN

1-4244-0332-4

Type

conf

DOI

10.1109/WCICA.2006.1713292

Filename

1713292