Current-to-pressure transducer with enhanced performance feature

Details Current-to-pressure transducer with enhanced performance feature Current-to-pressure transducer with enhanced performance feature

1988-11-21

1990-03-06

Rosenthal, Arnold

Fluid handling

Processes

25112908, 2511292, 137 82, F16K 3106

Patent

active

049057200

ABSTRACT:
An electric coil (20) induces a magnetic flux through a magnetic flow path (22, 24) which terminates in pole faces (26, 28) disposed parallel to a gap (30) therebetween. A non-ferrous pivot element (36) is mounted to one of the pole faces adjacent an edge thereof most distant from the gap. An armature (40) which is at least partially ferromagnetic is held in firm frictional engagement with the pivot element by a taut band (42). The armature pivots about the pivot element in accordance with current flowing through the coil. A fluid nozzle (54) is mounted adjacent the armature such that fluid flow through the nozzle is throttled in accordance with pivotal movement of the armature, hence, the electrical control signal current in the coil.

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Fairchild Precision Electro-Pneumatic Transducer (I/P, E/P), Fairchild Industrial Products Co., product literature, 11/87.

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