A Study on Neural Networks with Tapped Time Delays: Gas Concentration Estimation

In this study, an artificial neural network (ANN) structure with tapped time delays is used for the concentration estimation of Toluene gas inside the sensor response time by using the transient sensor response. The Quartz Crystal Microbalance (QCM) type sensors were used as gas sensors. A computer controlled measurement and automation system with IEEE 488 card was used to control the gas concentration values and to collect the sensor responses. The determination of Toluene gas concentrations from the trend of the transient sensor responses achieved with acceptable good performances, and the appropriateness of the artificial neural network for the gas concentration determination inside the sensor response time is observed with these training methods.

[1]  Massimo Riani,et al.  A time delay neural network for estimation of gas concentrations in a mixture , 2000 .

[2]  W. H. King.  Piezoelectric Sorption Detector. , 1964 .

[3]  Martin T. Hagan,et al.  Neural network design , 1995 .

[4]  F. Josse,et al.  Phthalocyanines as sensitive materials for chemical sensors , 1996 .

[5]  Richard P. Brent,et al.  Fast training algorithms for multilayer neural nets , 1991, IEEE Trans. Neural Networks.

[6]  C. M. Reeves,et al.  Function minimization by conjugate gradients , 1964, Comput. J..

[7]  Alberto Tesi,et al.  On the Problem of Local Minima in Backpropagation , 1992, IEEE Trans. Pattern Anal. Mach. Intell..

[8]  Mohammad Bagher Menhaj,et al.  Training feedforward networks with the Marquardt algorithm , 1994, IEEE Trans. Neural Networks.

[9]  John E. Dennis,et al.  Numerical methods for unconstrained optimization and nonlinear equations , 1983, Prentice Hall series in computational mathematics.

[10]  Przemyslaw M. Szecowka,et al.  Application of sensor array and neural networks for quantification of organic solvent vapours in air , 1999 .

[11]  P. Hauptmann.  Sensors: A Comprehensive Survey , 1996 .

[12]  Fevzullah Temurtas,et al.  Fuzzy Logic and Neural Network Applications on the Gas Sensor Data: Concentration Estimation , 2003, ISCIS.

[13]  Nejat Yumuşak,et al.  FUZZY INFERENCE SYSTEMS FOR GAS CONCENTRATION \ ESTIMATION , 2004 .

[14]  Sea Ling,et al.  Describing Web Service Architectures through Design-by-Contract , 2003, ISCIS.

[15]  Udo Weimar,et al.  Soluble phthalocyanines for the detection of organic solvents: thin film structures with quartz microbalance and capacitance transducers , 1995 .

[16]  George G. Guilbault,et al.  Continuous detection of toluene in ambient air with a coated piezoelectric crystal , 1980 .