GAS PRESSURE REFERENCE-POINT DEVICE Russian patent published in 2005 - IPC

FIELD: measurement technology.

SUBSTANCE: gas pressure reference-point device has axially symmetric chamber, sealer made in form of soft membrane, load element in shape of a plate being free rested against case of chamber in perpendicular to axis of symmetry of chamber, and load regulator disposed above the plate. Load regulator has core fixed to case of chamber and two coils: one motionless and one movable being connected to plate. Both coils are connected with controlled power supply. Chamber is connected pneumatically with gas supplier through piping. Gas supplier has pressure regulator and compressor. Sealer provides movable connection of plate of load element with case of chamber, which eliminates friction in gap between chamber and load element. Moreover, reaction of gas outflow doesn't effect effective area of load element.

EFFECT: improved precision of pressure reproduction.

7 cl, 5 dwg