드라이브 ㆍ 컨트롤 (Journal of Drive and Control)

  • 제13권2호
  • /
  • Pages.42-50
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  • 2016
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  • 2671-7972(pISSN)
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  • 2671-7980(eISSN)
유공압건설기계학회 (The Korean Society for Fluid Power and Construction Equipment)
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배관 압력을 이용한 서보밸브 정적 특성에 관한 실험적 연구

An Experimental Study on Static Characteristics of Servo Valves using Transmission Line Pressures

  • Kim, Sung Dong (Department of Mechanical System Engineering, Kumoh National Institute of Technology) ;
  • Joo, Byeol Jin (Dong Yang Industrial Co., LTD. TOP Run R&D Center) ;
  • Yun, So Nam (Dept. of Extreme Energy Systems, Korea Institute of Machinery & Materials)
  • 투고 : 2016.03.31
  • 심사 : 2016.05.20
  • 발행 : 2016.06.01
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초록

The conventional technique to measure the hysteresis and the null of servo valves is defined in ISO 10770-1 and based on load flow signal of the servo valve. A new technique based on the transmission line pressures is suggested in this study. The new measuring method was verified through a series of experiments. No hysteresis was observed between the spool displacement and the transmission line pressures, load pressure or each chamber pressure. Some hysteresis was observed between valve input and pressures, which was found to be the same as those of load flow and spool displacement for the valve input. By using the chamber pressures, the hysteresis and the null are easier to measure than the load pressure or differential pressure between those two chamber pressures because the chamber pressures showed sharp edges.

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참고문헌

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