Solid state fluorine sensor system and method
AssigneeRadian International LLC
InventorCurtis T. Laush
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Abstract
A gaseous fluorine detection system is provided which includes a generally enclosed sample cell containing a substrate comprising a material which interacts with fluorine gas to generate radiant energy. A gas sample of fluorine, the concentration levels of which are to be evaluated is flowed through the cell. A photomultiplier tube is positioned to receive the resulting radiant energy and generate an electrical output signal related to the level of said radiant energy. Means are provided for measuring the said photomultiplier output signal and relating same to the fluorine concentration of the gas sample provided to the cell.
Claims9
A gaseous fluorine detection system comprising:
- a generally enclosed sample cell containing a substrate comprising a material which interacts with fluorine gas to generate radiant energy, said cell being provided with an inlet and outlet to permit gas flow through the cell;
- means to flow a gas sample containing levels of fluorine through said cell for examination;
- a photomultiplier tube being positioned to receive radiant energy resulting from interaction of said substrate material with said fluorine and generate an electrical output signal related to the level of said radiant energy;
- and
- means for measuring the said photomultiplier output signal and relating same to the fluorine concentration of the gas sample flowing through said cell.
A method for detecting fluorine in a gas sample, comprising effecting an interaction between said gas sample and sodium salicylate in a generally enclosed cell to generate from said interaction detectable radiant energy;
- detecting the generated radiant energy with a photomultiplier tube to thereby generate an electrical output signal related to the level of radiant energy;
- and
- calibrating the output signal from said photomultiplier tube as a function of fluorine concentration by measuring output signal levels from the tube when said preceding steps are carried out with known levels of fluorine gas.
Dependencies are inferred from the claim text.