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Feedback Control of Temperature Profiles During Microwave Joining of Ceramics

Published online by Cambridge University Press:  15 February 2011

Mengli Li ,
Guy O. Beale  and
W. Murray Black
Mengli Li
Affiliation:
Department of Electrical and Computer Engineering, George Mason University, Fairfax, Virginia 22030
Guy O. Beale
Affiliation:
Department of Electrical and Computer Engineering, George Mason University, Fairfax, Virginia 22030
W. Murray Black
Affiliation:
Department of Electrical and Computer Engineering, George Mason University, Fairfax, Virginia 22030
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Abstract

The goal of this research is to develop an automatic feedback control system for ceramic samples being heated by microwave energy for the purpose of joining the samples. This paper describes two major topics connected with the research. First, the temperature control algorithm is described, and experimental results from testing that control algorithm with actual ceramic samples are presented. Secondly, the microwave cavity is modeled using a transmission line approach to relate iris and plunger positions to absorbed power. Equations are presented which give the proper positions for maximizing the absorbed power, and a control strategy for the iris and plunger is discussed. This research has been funded under NSF Grant No. DDM - 9115417.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 347: Symposium O – Microwave Processing of Materials IV , 1994 , 643
Copyright
Copyright © Materials Research Society 1994

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References

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