Dynamic Performance Analysis of Pure Fluid Amplifiers and Pure Fluid Computational Circuit Studies

摘要

Analytical models and experimental results of the dynamic behavior of proportional pure fluid amplifiers are presented. The fluid amplifier frequency responses calculated from the dirived equivalent circuit show good correlation with the experimental frequency responses recorded under various operating conditions. A method of measuring the fluid amplifier transfer function by use of an electronic analog computer operated in conjunction with the fluid amplifier was devised and analyzed. This method can provide mid frequency performance information of the unknown by using a relatively low frequency test signal. A pure fluid integrator using a beam deflection type proportional amplifier with positive feedback as the active circuit element has been developed and discussed. An equivalent circuit analysis and experiments has been performed to show the time integration characteristics of the preliminary design, experimental model. (Author)