Pressure transducer

Details Pressure transducer Pressure transducer

1987-08-03

1989-06-06

Woodiel, Donald O.

Measuring and testing

Fluid pressure gauge

Diaphragm

73729, 338 4, G01L 710, G01L 904

Patent

active

048360287

ABSTRACT:
Small pressure transducer able to operate in wide temperature and pressure ranges, as well as in aggressive environmental conditions, i.e. corrosive, radioactive or vibratory conditions. It essentially comprises a strip or blade (1) extended by two cylinders (13, 14), to which are fixed the ends of a bellows (10) within which a vacuum is produced. The cylinder (14) is offcentered or offset with respect to strip (1). The compressive stresses induce a pure bending and compression of the strip (1). Two extensometers of extensometric gauges (2,3) located on opposite faces of strip (1) and whereof the deformations are taken by an electric circuit make it possible to characterize the bending.

REFERENCES:
patent: 420570 (1890-02-01), Bristol
patent: 2405199 (1946-08-01), Faust
patent: 3089341 (1963-05-01), Gay
patent: 3343420 (1967-09-01), Kondo et al.
patent: 3474681 (1969-10-01), Eriksen

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