Journal of the Korean Society of Manufacturing Technology Engineers (한국생산제조학회지)

The Korean Society of Manufacturing Technology Engineers (한국생산제조학회)
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Development of Control System for Ultrasonic Spray Pyrolysis Deposition

초음파 분무 열분해 증착 제어 시스템 개발

  • Kim, Kyu-Eon (Mechanical System and Design Engineering, Seoul National University of Science and Technology) ;
  • Kim, Yeong-Heum (Mechanical System and Design Engineering, Seoul National University of Science and Technology) ;
  • Lee, Chibum (Mechanical System and Design Engineering, Seoul National University of Science and Technology)
  • Received : 2014.07.19
  • Accepted : 2014.07.30
  • Published : 2014.08.15
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Abstract

A control system for ultrasonic spray pyrolysis deposition was developed that can coat a large size glass panel with a transparent conductive oxide. It consists of several ultrasonic atomizer devices to cover a large area and a host computer for individually controlling the devices. The sub-controller in an ultrasonic atomizer device can adjust the flow rate of the atomized conductive oxide gas by setting the flow rate of the solution and regulating the level of the solution in the tank. To construct a feedback control loop for level regulation, a level sensor that utilized an infrared distance sensor and an electric circuit for adjusting the ultrasonic oscillator were developed. The host program was also developed, which can monitor and control the sub-controllers. A proportional-integral controller was developed for a simplified model, and its operation was verified through an experiment.

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References

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