Control Systems

Instrumentation of a liquid level system
(from january 2005 to march 2006)

• Members:
  • Adolfo Bauchspiess (leader)
  • Geovany Araújo Borges
  • Alfredo Américo (M.Sc. student, Electrical Eng.)
  • Júlio César (D.Sc. student, Electrical Eng.)
  • Roberto Leal (M.Sc. student, Electrical Eng.)
  • Gustavo Amaral Melo (M.Sc. student, Mechatronics Eng.)
  • Mariana Bernardes (M.Sc. student, Mechatronics Eng.).
• Goals: Dsign, identification and real-time liquid level control of four reconfigurable coupled tanks.
• Activities: Liquid level sensing using pressure sensors, master-slave real-time control architecture, hard real-time control using MATLAB and a real-time extension for Windows, neural control implemented on PLC.
• Documents:
  • Gustavo Amaral Ferreira de Melo and Mariana Costa Bernardes, "Instrumentação e controle de uma maquete de nível de líquido com quatro tanques interconectados", B.Sc. conclusion report in Mechatronics Eng., march 2006. (PDF) (in brazilian portuguese).
• Photos:

Photos of the new liquid-level system - Mariana Bernardes, Gustavo Melo and Alfredo Américo
Modular liquid-level system composed of four coupled tanks
Controller and actuator boards
Liquid-level sensors	Motors

• Videos:
  • Available soon.
    
• Publications:
  
  1. A.A. Freitas, G. A. Borges and A. Bauchspiess. "Avaliação do Filtro de Kalman Estendido para Estimação de Parâmetros de Processo de Nível de Líquidos", In CONGRESSO BRASILEIRO DE AUTOMÁTICA, Gramado, Brazil, 2004. (PDF) (in brazilian portuguese)
  2. A.A. Freitas, G. A. Borges and A. Bauchspiess. "State Space Control and Extended Kalman Filter Estimation Applied to a 3rd Order Liquid Level Process". In INTERNATIONAL CONFERENCE ON INDUSTRIAL APPLICATIONS (INDUSCON), Joinville, Brazil, 2004. (PDF)