1992 Volume 54 Issue 5 Pages 9-17
As an inclination control sensor for a tractor used for sloping ground, a servo valve sensor with acceleration input was made for trial, and its response characteristics were elucidated. The sensor was composed of a jet pipe servo-valve, a cantilever spring and a weight, and responding to the acceleration acting on the weight, the jet pipe and an oil hydraulic circuit work. At the time of the trial manufacture, the equation of motion for the servo system was derived, and the transfer function was determined to analyze the frequency characteristics. Further, taking the position of setting the sensor up in consideration, and simulating the flow rate of working oil, it was confirmed by the performance experiment that the equation of motion is appropriate. It became clear in the experiment on the step response that the effect of the natural frequency was little, and the servo system was stable.
