Nozzle Flow Characteristics in Pneumatic Force-Balance Circuits
D. B. Kirk · Transactions of the American Society of Mechanical Engineers · 1948
Abstract A simple nozzle-diaphragm device for transmitting an air pressure substantially corresponding to an applied process pressure is examined with respect to the factors affecting nozzle clearance. Elementary gas-flow formulas are used to analyze these factors, and auxiliary circuit components are introduced which reduce substantially the variation in nozzle clearance as a function of the transmitted air pressure.