Pressure transducer

Details Pressure transducer Pressure transducer

1987-05-27

1989-05-16

Woodiel, Donald O.

Measuring and testing

Fluid pressure gauge

Diaphragm

73706, 338 4, G01L 708, G01L 904

Patent

active

048298271

ABSTRACT:
A pressure transducer for the measurement of mid-range pressures in the preferred range of 500-7500 psi and including an elongated frame having a capillary tube extending therethrough and employing a coupler at one end of the frame for sensing input pressure. A sensing member is provided at the other end of the capillary tube and has a sensing chamber adapted to have at least one filler means disposed therein. A recess is provided in the sensing member defining a relatively thin wall adjacent the sensing chamber. This wall has a pressure responsive sensing surface that extends substantially parallel to the capillary tube length and upon which strain gages are secured.

REFERENCES:
patent: 3349623 (1967-10-01), Pastan
patent: 3678753 (1972-07-01), Eggleston
patent: 4369659 (1983-01-01), Wareham
patent: 4679438 (1987-07-01), Wareham
patent: 4680972 (1987-07-01), Wareham
patent: 4702113 (1987-10-01), Wareham
patent: 4712430 (1987-12-01), Wareham

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