High pressure transducer

Details High pressure transducer High pressure transducer

1985-11-14

1987-07-14

Woodiel, Donald O.

Measuring and testing

Fluid pressure gauge

Diaphragm

338 4, 338 42, 29157R, 29454, G01L 708, G01L 904

Patent

active

046794387

ABSTRACT:
A pressure transducer for in particular the measurement of relatively high pressures in the range of 10,000-50,000 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 disposed about the capillary tube at the other end of the frame and has, defined with the capillary tube, a sensing chamber in communication with the capillary tube. A recess is provided in the sensing member defining a relatively thin wall adjacent the annular 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. A method as described for securing the capillary tube with the sensing member in a liquid tight manner.

REFERENCES:
patent: 3349623 (1967-10-01), Paston
patent: 3645136 (1972-02-01), Calhound
patent: 3884078 (1975-05-01), Zeiringer

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