ELECTROCHEMICAL GAS SENSOR

摘要

An electrochemical gas sensor for detecting at least one gas species present in an atmosphere. The gas sensor comprises: a first gas sensing electrode (16) adapted to detect at least a first target gas species; a first gas path (30) for guiding the gas to the first gas sensing electrode; a second gas sensing electrode (20) adapted to detect at least a second target gas species, the first and second gas sensing electrodes being located on opposite sides of an electrolyte-containing region; a second gas path (31) between the atmosphere and the second electrode, the gas path bypassing the first gas sensing electrode; and a counter electrode (45).