A Microcontroller Based System for an Automatic Control of pH and Acidity Degree of Chemical Products

L. Khouni(1*), A. Khellaf(2), L. Saad Saoud(3), D. Mokeddem(4)

(1) Department of Electronics, Faculty of Engineering, University of Setif, Algeria
(2) Department of Electronics, Faculty of Engineering, University of Setif, Algeria
(3) Department of Electronics, Faculty of Engineering, University of Setif, Algeria
(4) Department of Electronics, Faculty of Engineering, University of Setif, Algeria
(*) Corresponding author


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Abstract


In this work, a microcontroller based system for an automatic control of pH and acidity degree of chemical products is implemented. The acquisition chain consists of a commercial sensor TACUSSEL, an analogue signal processing unit and an Analogue to Digital Converter built in the microcontroller. A micrometric magnetic field pump is used to titrate products. The microcontroller drives the different parts of the system in real time. It measures the pH values, and then computes the different points of the differential pH curve using the gradient method. The maximal value corresponds to the equivalence point. Extensive analysis on known products such as the commercial vinegar, milk, acetic acid and water, shows that our results are in complete concordance with those using the Gran method.
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Keywords


Microcontroller Based System; Equivalence Point; pH Control Techniques

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References


Mokeddem, D., Khellaf, A., Design of a Fuzzy Controller for pH Using Genetic Algorithm, (2007) International Review on Computers and Software (IRECOS), 2 (4).

W.W. Tan, F. Lu, A.P. Loh and K.C. Tan, Modeling and control of a pilot pH plant using genetic algorithm, Engineering Applications of Artificial Intelligence, Vol.18, No. 4, 2005, pp.485-494.

M.Gulaian, Online adaptive pH control with multiple reagents, Decision and Control, Proceedings of the 29th IEEE Conference on 5-7 Dec. 1990 pp.2806 - 2808 vol.5.

C. Tavernier, Industrial applications of PIC, Edition DUNOD, Paris 2001.

Christian Tavernier, PIC microcontrollers description and implementation, Edition DUNOD, Paris 2000, pp 39-64 et pp185-202.

Alex D. Kalafatis, Liuping Wang and William R, Cluett, Linearizing feedforward–feedback control of pH processes Based on the Wiener model, Journal of Process Control, Vol.15, No.1, 2005, pp 103-112.

J.Lee, J. Young, In-Line mixer for feed forward control and adaptive feedback control of pH process, Chem. Eng. Scien, Vol 55, 2002, pp. 1337- 1345.


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