This article discusses a straight forward method of measuring spool displacement in a totally-enclosed pressure actuated hydraulic valve. The method involves the total immersion of a rectilinear potentiometer in oil at a pressure of 140 bars.
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References
1.
RoseEWatsonG A. ‘An investigation into the factors affecting the performance of a force-control system incorporating a hydraulic pressure-ratio valve’, Proc I Mech E, Vol 186, 49/72, 1972.
2.
RoseE.‘A linear approach to the analysis of a force control system incorporating a hydraulic pressure-ratio valve’, NCFPChicago, Sept 1972.
