Gas Sensors - An Important Technology for Health, Home and Industry
Types of Gas Sensors   Semiconductor gas sensors: One of the most widely used type, these utilize metal-oxide semiconductors whose conductivity changes on reacting with gases. Taget gases include CO, NOx, H2S etc.   Electrochemical gas sensors: An electrochemical cell is used containing electrodes and an electrolyte. Gas diffusing through causes oxidation/reduction reactions leading...
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