Pressure measuring device

Details Pressure measuring device Pressure measuring device

1979-06-13

1981-11-10

Woodiel, Donald O.

Measuring and testing

Fluid pressure gauge

Piston

73720, 73726, G01L 902

Patent

active

042991293

ABSTRACT:
A pressure measuring device for measuring absolute or differential pressure has a hollow carrier, with a deformable measuring bar extending across the opening in the carrier. A transducer is fixed on the bar and converts deformation of the bar to electrical signals. The bar has weakened portions of reduced cross-section at four spaced positions thereon, in order to define the manner of deformation of the bar. A rigid piston connected to the bar substantially centrally thereof is sealingly displaceably guided in a pressure-receiving chamber whereby the piston is subjected to the pressure to be measured and thereby causes deformation of the bar, with the resultant production of electrical signals representing the pressure.

REFERENCES:
patent: 3022672 (1962-02-01), Dimeff et al.
patent: 3335381 (1967-08-01), Di Giovanni
patent: 3377866 (1968-04-01), Flavin

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