A. Electrochemical sensors are based on the fact that cells can be constructed that react with the measured gas and generate an electric current. B. The Cell current can be measured, and the amount of gas determined. C. The sensors are low cost and are small enough to allow several to be incorporated into the same instrument, making them suitable for use in multi-gas detectors. D. There are numerous electrochemical sensors available covering a number of gases which may be present in the shipboard environment, such as ammonia, hydrogen sulfide, carbon monoxide, carbon dioxide and sulfur dioxide. « Previous Next »
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