Detection of oxidisable gases e.g. carbon mon:oxide - using metal oxide and phthalocyanine sensors for detection in mixt. whose components tend to react directly

摘要

The arrangement contains one or more metal oxide sensors and one or more phthalocyanin sensors. The sensor signals are processed by an evaluation unit to increase the mutual influence of simultaneously present reducible and oxidisable gases. The evaluation unit combines the signals from the two sets of sensors according to stored functions. ADVANTAGE - Provides reliable detection of target sustance e.g. carbon monodixe despite presence of mixture whose components tend to react directly near sensor surface.