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A microflame-based detector has been developed for sensing a broad range of chemical analytes. This detector combines calorimetry and flame ionization detection (FID) to produce unique analyte signatures. The microcombustor consists of a micromachined microhotplate with a catalyst on its surface, such as platinum/alumina, to rapidly initiate the ionization event. The low power microcombustor design...
This work details the development of a low cost, lower heating value (LHV) sensor that consists of a catalytic film deposited on the surface of a micromachined hotplate. The micromachined sensor has low heat capacity and thermal conductivity, making it appropriate for accurate LHV determination. Catalytically combusting the fuel provides the capability of direct LHV measurement, unlike most LHV measurement...
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