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Oxygen sensors are used in many combustion processes is order to improve efficiency and reduce pollution. In oxy-fuel combustion of coal, separated oxygen is used so that the exhaust is nearly pure carbon dioxide suitable for geologic sequestration. In this case, the high cost of separated oxygen provides strong motivation for exhaust gas oxygen sensors. In this paper we report recent progress toward the development of wireless oxygen sensors suitable for placement in the harsh environment of the combustion system exhaust duct. Wireless sensors are of particular interest because they would facilitate placement of multiple sensors to sample the nonhomogeneous exhaust flow.
Also, the paper explains discussion about electroacoustic effect, efficiency, harsh environment, stepped oxygen concentration, device, resonant, input, oxygen response, layer, testing, design, wireless, conductivity, and emitting transducer.