Hydrogen probe system
First Claim
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1. A hydrogen probe system comprising:
- a. a ferrous metal probe body adapted to be exposed to a corrodant, said body having an enclosed fluid-tight internal cavity for collecting hydrogen gas produced by action of the corrodant on said body;
b. a sample cell containing a background liquid chemically inert and in which hydrogen has a relatively low solubility;
c. capillary port means in said sample cell connected by a fluid channel to said cavity, and said capillary port means precisely metering discrete uniform-dimensioned bubbles of hydrogen gas into said background liquid;
d. detector means sensing the release of hydrogen gas bubbles into said background liquid and providing an output signal representative thereof; and
e. output means receiving said output signal and providing a readout of the hydrogen gas bubbles being released from said capillary port means.
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Abstract
A hydrogen probe system measuring hydrogen gas produced in the corrosion of steel, both in volume and rate, with a relatively simple construction, rapid installation at any location and trouble-free operation for extended periods of time without supervision. The probe system has a ferrous metal body enclosing a cavity collecting hydrogen gas metered through a capillary port into a background liquid contained in a sample cell thereby forming discrete, uniform-dimensioned bubbles. A detector senses the release of these bubbles and provides a representative output signal to an output means giving a readout of the hydrogen gas bubbles being released within a selected time interval.
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Citations
17 Claims
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1. A hydrogen probe system comprising:
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a. a ferrous metal probe body adapted to be exposed to a corrodant, said body having an enclosed fluid-tight internal cavity for collecting hydrogen gas produced by action of the corrodant on said body; b. a sample cell containing a background liquid chemically inert and in which hydrogen has a relatively low solubility; c. capillary port means in said sample cell connected by a fluid channel to said cavity, and said capillary port means precisely metering discrete uniform-dimensioned bubbles of hydrogen gas into said background liquid; d. detector means sensing the release of hydrogen gas bubbles into said background liquid and providing an output signal representative thereof; and e. output means receiving said output signal and providing a readout of the hydrogen gas bubbles being released from said capillary port means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. The apparatus for a hydrogen probe system comprising:
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a. a ferrous metal probe body adapted to be exposed to a corrodant, said body having an enclosed fluid-tight internal cavity for collecting hydrogen gas produced by action of the corrodant on said body; b. a sample cell containing a background liquid chemically inert and in which hydrogen gas has a relatively low solubility; and c. capillary port means in said sample cell connected by a fluid channel to said cavity, and said capillary port means precisely metering discrete uniform-dimensioned bubbles of hydrogen gas into said background liquid. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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Specification