TY - JOUR T1 - Observing of pH for Titration Process with Hybrid Neural Network Structure AU - Asad, Shebel JO - Journal of Engineering and Applied Sciences VL - 6 IS - 5 SP - 326 EP - 331 PY - 2011 DA - 2001/08/19 SN - 1816-949x DO - jeasci.2011.326.331 UR - https://makhillpublications.co/view-article.php?doi=jeasci.2011.326.331 KW - RBFNN KW -pH measurement KW -Hybrid neural network KW -MLPNN KW -Labview KW -Matlab AB - This study presents the application of a numerical pH observer integrated into titration process as an industrial replacement of real hardware electrodes to measure pH. The proposed observer is designed with Labview and Matlab. First, two kinds of neural networks NN-Multilayer Perceptron network (MLP) and Radial Basis Function network (RBF) are used, separately to design pH observers then to ensure the accuracy and modify the response, a hybrid neural network is developed, it accomplishes the best features found with both MLPNN and RBFNN. The Split-sample method is implemented to select the optimal NN structure. Results are presented and compared in presence of measurement noise (uncertainties in base flow in and temperature variation). ER -