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A gas dilution test bed is used to detect low hydrogen concentrations. Mixtures of
nitrogen and hydrogen gases are selected via solenoid valves and sent to a temperature
controlled mixing chamber, and then to a test cell containing the SAW. Data is transfered
to a PC with a data aquisiton card.
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MKS Mass Flow Controllers are used to regulate flow of nitrogen and hydrogen gases.
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Currently underway is a gas dilution system for testing various organic vapors at low
concentrations. To the left, the dilution system is completley built and ready for testing.
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