Pressure sensing device

Details Pressure sensing device Pressure sensing device

1987-09-14

1988-10-11

Woodiel, Donald O.

Measuring and testing

Fluid pressure gauge

Diaphragm

73727, 92103M, 338 4, G01L 708, G01L 906

Patent

active

047762187

ABSTRACT:
A pressure sensing device of this invention has a first diaphragm for defining a first pressure transmission chamber within a housing assembly with a pressure transmission fluid sealed therein and a second diaphragm for defining a second pressure transmission chamber within the housing assembly with a pressure transmission fluid sealed therein. The pressures of first and second measuring fluids both act upon the side opposite to that on which the corresponding diaphragm faces the corresponding pressure transmission chamber. The first and second diaphragms are both formed of a metal sheet having the modulus of 2,000 to 15,000 Kg/mm.sup.2. A pressure-sensing element is disposed between the pressure transmission chambers to sense a differential pressure level between the pressure transmission chambers.

REFERENCES:
patent: 4412454 (1983-11-01), Yamashita et al.

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