Pressure measuring device

Details Pressure measuring device Pressure measuring device

1986-09-17

1988-03-22

Woodiel, Donald O.

Measuring and testing

Fluid pressure gauge

Diaphragm

73721, 338 4, G01L 708, G01L 906

Patent

active

047320443

ABSTRACT:
A pressure measuring device comprises a support casing having an aperture, a substrate mounted in the casing and deformable through the effect of a pressure to be measured introduced into the casing through the aperture, at least one electrical deformation sensor, preferably a thick-film resistor, applied to the substrate, circuit means housed in the casing and connected to the at least one electrical deformation sensor for outputting electrical signals indicative, according to a predetermined response curve, of the deformations of the substrate and hence of the pressure acting thereon, and manually-operable electrical adjustment means mounted in the casing and connected to the circuit means, for modifying predetermined characteristics of the response curve.

REFERENCES:
patent: 3034347 (1962-05-01), Starr
patent: 3646815 (1972-03-01), Martin et al.
patent: 4480478 (1984-11-01), Sato et al.
patent: 4576052 (1986-03-01), Sugiyama
patent: 4620449 (1986-11-01), Borries

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