Proceedings of the Korean Society of Precision Engineering Conference (한국정밀공학회:학술대회논문집)

  • 1997.10a
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  • Pages.462-466
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  • 1997
  • /
  • 2005-8446(pISSN)
Korean Society for Precision Engineering (한국정밀공학회)
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A study on PC based pressure control using a proportional directional control valve

PC기반 비례방향제어밸브를 이용한 압력제어에 관한 연구

  • 전세형 (금오공과대 대학원 기계공학부) ;
  • 여화동 (금오공과대 대학원 기계공학부) ;
  • 홍석철 (금오공과대 대학원 기계공학부) ;
  • 김성동 (금오공과대 기계공학부)
  • Published : 1997.10.01
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Abstract

Proportional directional control valves (PDCVl adjust the amount of flow as well as flow direction in response to an electrical signal. This valves includes direct operated valves with or without spool position feedback. This paper investigates if it is possible to control pressure of fluids by means of the PDCV. A pressure signal is feed back to the Proportional-Integral (PI) controller, which is based upon a personal computer (PC). The PI control algorithm is implemented in a graphical programming language of LabVIEW. The results of experiments show the PDCV can be used a multi function valve of pressure control as well as direction control.

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