Miniature electronic pressure gauge

Details Miniature electronic pressure gauge Miniature electronic pressure gauge

1991-10-11

1993-03-09

Woodiel, Donald O.

Measuring and testing

Fluid pressure gauge

Combined

73753, 73756, 116 34R, G01L 900

Patent

active

051917971

ABSTRACT:
A miniature electronic pressure gauge is described comprising a case (10) having an aperture leading to a transducer (1) connected to an amplifier (3), the transducer (1) and amplifier (3) being powered from a power source (2) in the form of a storage battery such as a Nicod battery. A pressure signal from the amplifier (3) is fed to a linearization circuit (4) and to an analogue/digital converter (6) clocked with pulses from clock generator (5). The output of converter (6) is fed to a decoder/driver (7) for a seven segment L.C.D. (8). In a preferred construction the pressure gauge is releasably retained in a fluid-tight engagement in a bore in the wall of a pressure chamber of a paint spray gun.

REFERENCES:
patent: 4250759 (1981-02-01), Vago et al.
patent: 4301685 (1981-11-01), Guillemont
patent: 4352168 (1982-09-01), Anderson
patent: 4615211 (1986-10-01), Kolm et al.
patent: 5005765 (1991-04-01), Kistner
patent: 5044557 (1991-09-01), Smith

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