Chemistry: electrical and wave energy – Processes and products – Processes of treating materials by wave energy
Patent
1987-09-04
1990-05-01
Tung, T.
Chemistry: electrical and wave energy
Processes and products
Processes of treating materials by wave energy
204400, 204415, G01N 2746
Patent
active
049215825
ABSTRACT:
A system for measuring dissolved oxygen in a fluid employs a galvanic electrode operated in a transient mode. In operation, the galvanic electrode is intermittently coupled and decoupled, under computer control, to and from a sampling system. The sampling system samples the transient current which results from the intermittency, and generates a current-time curve. Prior to the first use of the galvanic electrode, however, the galvanic electrode is calibrated, a theoretical current-time curve is generated, and the residual current of the galvanic electrode is recorded. Such calibration and residual current data is used to generate simulation data corresponding to a simulation curve. The concentration of dissolved oxygen in the test fluid is determined using the simulation data.
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Li Xiang M.
Wang Henry Y.
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