Current-to-pressure transducers

Details Current-to-pressure transducers Current-to-pressure transducers

1987-01-20

1988-03-08

Cohan, Alan

Fluid handling

Pressure modulating relays or followers

25112908, G05D 1600, F16K 1302

Patent

active

047293985

ABSTRACT:
In a current-to-pressure (I/P) transducer which controls output pressures by rapidly and precisely venting pressures of fluid derived from a supply, the movable valve member employed in the venting comprises a mechanically-balanced low-mass armature suspended for restrained pivotal movements by a taut band and incorporating readily-saturated magnetic material disposed in gap-bridging relation to core elements of a stationary electromagnet; the counterbalancing and taut-band suspension of but a small mass renders the armature highly resistant to adverse effects of vibration, and selectable positioning of the venting-valve seat or port to cooperate with one or the other end of the pivoted armature allows for direct or inverse responses to currents fed to the electromagnet.

REFERENCES:
patent: 3942558 (1976-03-01), Honda
patent: 4554938 (1985-11-01), Twisselmann

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