Method and apparatus for measuring the pressure of a fluid

Details Method and apparatus for measuring the pressure of a fluid Method and apparatus for measuring the pressure of a fluid

1986-03-21

1987-12-08

Woodiel, Donald O.

Measuring and testing

Liquid level or depth gauge

Hydrostatic pressure type

73744, G01F 2314, G01L 716

Patent

active

047111275

ABSTRACT:
An apparatus for measuring gas pressures including a piston slideably guided in a cylinder, at least one of the gas pressures acting on one of the two face surfaces of the piston the piston face forming a pressure chamber with the interior of said cylinder. Hydrostatic bearings are provided between the piston and the cylinder for relative movement therebetween essentially without friction. Hydrostatic liquid to hydrostatic bearings, at least one receptable connected to said pressure chamber for receiving any hydrostatic liquid penetrating from said hdyrostatic bearings into the pressure chamber. Provision is made for maintaining the hydrostatic liquid in the receptacle at a predetermined level, as well as for removing hydrostatic liquid from the receptacle under control of a level maintaining element and a force measuring element engaging the piston.

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