An intelligent optical fibre pH sensor based on sol-gel advanced material and artificial neural network / Mohd Nasir Taib, Faiz Bukhari Mohd Suah and Musa Ahmad

Taib, Mohd Nasir and Mohd Suah, Faiz Bukhari and Ahmad, Musa (2005) An intelligent optical fibre pH sensor based on sol-gel advanced material and artificial neural network / Mohd Nasir Taib, Faiz Bukhari Mohd Suah and Musa Ahmad. Scientific Research Journal, 2 (2). pp. 1-15. ISSN 1675-7009

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Abstract

The application of artificial neural network (ANN) in signal processing of optical fibre pH sensor is presented. The pH sensor is developed based on the use of bromophenol blue indicator immobilized in a sol-gel thin film as a sensing material. A three layer feed-forward network was used and the network training was performed using the back-propagation algorithm. Spectra generated from the pH sensor at several selected wavelengths are used as the input for the ANN. The bromophenol blue indicator, which has a limited dynamic range of 3.00-5.50 pH units, was found to show higher pH dynamic range of 2.00-12.00 and low calibration error after training with ANN. The trained ANN was successfully employed to predict several spectra from unknown buffer solution with an average error of 0.06 pH units.

Item Type: Article
Creators:
CreatorsEmail
Taib, Mohd Nasirdr.nasir@ieee.org
Mohd Suah, Faiz BukhariUNSPECIFIED
Ahmad, MusaUNSPECIFIED
Subjects: Q Science > QA Mathematics > Instruments and machines > Electronic computers. Computer science > Neural networks (Computer science)
Q Science > QA Mathematics > Instruments and machines > Electronic computers. Computer science > Neural networks (Computer science)

T Technology > TK Electrical engineering. Electronics. Nuclear engineering > Optical fibers
Divisions: Institute of Research, Development and Commercialization (IRDC)
Journal or Publication Title: Scientific Research Journal
ISSN: 1675-7009
Volume: 2
Number: 2
Page Range: pp. 1-15
Item ID: 12802
Uncontrolled Keywords: Artificial neural network; Optical fibre pH sensor; Signal processing; Sol-gel; pH indicator; bromophenol blue
Last Modified: 26 May 2016 06:51
Depositing User: Staf Pendigitalan 1
URI: http://ir.uitm.edu.my/id/eprint/12802

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