Sensors & Transducers Journal
(ISSN 1726- 5479)
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205.767 |
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(ISSN 1726- 5479) |
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Sensors & Transducers Journal 2010 Sensors & Transducers Journal 2009 Sensors & Transducers Journal 2008 Sensors & Transducers Journal 2007 2000-2002 S&T e-Digest Contents
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Vol. 133, Issue 10, October 2011, pp.65-73
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Fuzzy Logic Applied to an Oven Temperature Control System Nagabhushana KATTE, 1 Nagabhushan Raju KONDURU, 2Bhaskar POBBATHI and 1,2 Parvathi SIDARADDI Department of ECE, Ballari Institute of Technology and Management, Bellary, KA, India 1 Department of Instrumentation, SK University, Anantapur – 515 003, A.P., India 2 Department of Instrumentation Technology, G.U. P. G. Centre, Raichur 583 133, KA, India E-mail: nagkatte@gmail.com
Received: 2011 /Accepted: 25 October 2011 /Published: 31 October 2011 |
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Abstract: The paper describes the methodology of design and development of fuzzy logic based oven temperature control system. As simple fuzzy logic controller (FLC) structure with an efficient realization and a small rule base that can be easily implemented in existing underwater control systems is proposed. The FLC has been designed using bell-shaped membership function for fuzzification, 49 control rules in its rule base and centre of gravity technique for defuzzification. Analog interface card with 16-bits resolution is designed to achieve higher precision in temperature measurement and control. The experimental results of PID and FLC implemented system are drawn for a step input and presented in a comparative fashion. FLC exhibits fast response and it has got sharp rise time and smooth control over conventional PID controller. The paper scrupulously discusses the hardware and software (developed using ‘C’ language) features of the system.
Keywords: Fuzzy logic controller, PID, Temperature control, and Computer based control
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