Design and implementation of a controller for a glass fiber chemical vapor deposition machine

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  • This thesis is concerned with a design of a closed-loop microprocessor based control system for a glass fiber chemical vapor deposition (CVD) machine.Current CVD machines require extensive operator skills and intervention in the manufacturing process. From one to seven operators are typically employed. Controllers are single, open loops that are in general,unreliable and inflexible. The CVD process itself is undertaken by only a few companies and a substantial body of knowledge on controlability is lacking.A fully automatic closed loop microprocessor system is described in this thesis. Its design involved a comprehensive characterization of the CVD process, designing an operator interface, selecting the hardware design and implementing the software. In addition, goals were set with respect to reliability, maintainability and extensibility. A complete system was built and tested.Results of field trials indicate that the process can be controlled with minimal operator intervention, a single operator can simultaneously control up to eight CVD machines. Reliability and maintainability goals have been met. The operator acceptance has been high.

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  • Copyright ¬© 1983 the author(s). Theses may be used for non-commercial research, educational, or related academic purposes only. Such uses include personal study, research, scholarship, and teaching. Theses may only be shared by linking to Carleton University Institutional Repository and no part may be used without proper attribution to the author. No part may be used for commercial purposes directly or indirectly via a for-profit platform; no adaptation or derivative works are permitted without consent from the copyright owner.
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  • 1983

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