Differential pressure gauge

Details Differential pressure gauge Differential pressure gauge

1982-07-19

1984-10-16

Woodiel, Donald O.

Measuring and testing

Fluid pressure gauge

Vibration type

73DIG1, 73182, 73717, G01L 706, G01L 900

Patent

active

044767250

ABSTRACT:
A differential pressure gauge comprises a balance beam (3) acting upon a vibrating blade (6). The beam (3) and the blade (6) are disposed in a rigid chamber 4 under vacuum. The beam (3) is acted upon by a force, resulting from the deformation of a flexible or expansible chamber (7) subjected to a pressure P.sub.T and disposed in a second rigid chamber (5) subjected to a pressure P.sub.S. A flexible or expansible seal element (9) isolates the chambers but transmits the forces without disturbing them. This gauge has a high precision and delivers information in digital form, particularly useful in aeronautics.

REFERENCES:
patent: 3541849 (1970-11-01), Corbett
patent: 4091679 (1978-05-01), Furusawa
patent: 4192183 (1980-03-01), Avellis et al.
patent: 4215570 (1980-08-01), Nisse
patent: 4311053 (1982-01-01), Cucci

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