PERFECCIONAMIENTOS EN LOS APARATOS TRANSDUCTORES DE SENALES ELECTRICAS A-SENALES DE PRESION NEUMATICA

摘要

An electrical signal-to-pneumatic pressure signal transducer (10) converts a desired control pressure electrical signal (PDES) to a load control pressure pneumatic signal by modulating fluid source flow to the load (14) through gated solenoid valves (24, 36) actuated in response to a difference value (Pe) between the desired pressure electrical signal (PDES) and an actual sensed control pressure electrical signal (PSEN).