Total dissolved gas pressure measuring device

Details Total dissolved gas pressure measuring device Total dissolved gas pressure measuring device

1984-07-24

1986-01-14

Kreitman, Stephen A.

Measuring and testing

Gas content of a liquid or a solid

By vibration

G01N 710

Patent

active

045638926

ABSTRACT:
The invention measures the total dissolved gas and fluid vapor pressure in liquids both aqueous and organic. It comprises a hydrostatically isolated gas phase of as low volume as possible isolated from the liquid being measured by a gas-permeable membrane configured to be insensitive to hydrostatic pressure, in this instance in the form of a tube. The gas phase inside the tube communicates with a pressure measuring component which is either, in this instance, a special type of closed manometer, or strain gauge which senses pressure by piezoresistive or capacitive pressure induced change or other pressure measuring means of low or negligible internal volume and compliance, together with a calibration means. The invention is provided with a calibrated scale or electronic readout means for the pressure measuring component.

REFERENCES:
patent: 3313157 (1967-04-01), Gilson
patent: 3459032 (1969-08-01), Yamaguchi et al.
patent: 4366700 (1983-01-01), Bouck

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