Final LDRD report for the project entitled: (open quotes)Enhanced analysis of complex gas mixtures by pattern recognition of microsensor array signals(close quotes)

摘要

Microsensors do not have the selectivity to chemical species available in large laboratory instruments. This project employed arrays of catalytically gated silicon microsensors with different catalysts to create data streams which can be analyzed by pattern recognition programs. One of the most significant accomplishments of the program was the demonstration of that mixtures of H(sub 2) with the oxidants NO(sub x) and O(sub 2) could distinguished from one another by the use of different catalytic metals on the Sandia Robust Hydrogen (SRH) sensors and the newly developed pattern recognition algorithm. This sensor system could be used to identify explosive gas mixtures and analyze exhaust streams for pollution control.