An atmospheric oxidation monitor based on in situ thin-film deposition

作者:Quinn RC*; Zent AP; Garry JRC; Ringrose TJ; Towner MC; Grunthaner FJ
来源:Sensors and Actuators B: Chemical , 2006, 114(2): 841-848.
DOI:10.1016/j.snb.2005.08.003

摘要

We describe an atmospheric oxidation sensor developed and delivered as part of the European Space Agency (ESA) Beagle 2 (B2) Mars Lander Environmental Sensor Suite (ESS). The sensor monitors atmospheric oxidation rates by measuring resistance changes in a thin-silver (Ag) film deposited in situ onto a sapphire substrate while on the surface of Mars. Potential terrestrial applications of this sensing approach include long-term monitoring of oxidative contaminants in low-oxygen systems including process gases and environmental chambers. The sensor response to ppb levels of hydrogen peroxide (H2O2) vapor in carbon dioxide (CO2) is demonstrated.

  • 出版日期2006-4-26