Amperometric Electrochemical Gas Sensing Apparatus And Method For Measuring Oxidising Gases

Patent No. EP2975390 (titled "Amperometric Electrochemical Gas Sensing Apparatus And Method For Measuring Oxidising Gases") was filed by Alphasense on Jul 14, 2015. The application was issued on May 1, 2024.

Patent Summary

An amperometric electrochemical gas sensing apparatus for sensing NO2 and O3 in a gas sample, comprising a first working electrode that reduces both NO2 and O3 to generate a current, a second working electrode that reduces NO2 to generate a current, and an O3 filter adjacent the second working electrode. The apparatus is configured such that the first working electrode and the O3 filter are exposed to the gas sample in parallel. The O3 filter removes O3 from the sample gas before it reaches the second working electrode, allowing the apparatus to accurately measure NO2 and O3 concentrations in the presence of each other.

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EP2975390

ALPHASENSE
Application Number
EP15176730A
Filing Date
Jul 14, 2015
Status
Patent Maintained As Amended
Mar 29, 2024
Publication Date
May 1, 2024