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| Developed for the automotive industry, where the rapid detection of the partial pressure of oxygen is critical to controlling the air-fuel ratio in modern electronic fuel injection systems, this new-type semiconductor resistance sensor offers low manufacturing cost, fast response times, high thermal stability, and low temperature-dependence. Applications include marine engines, aircraft engines, boilers, generators, and other relatively high temperature devices that can make use of oxygen data to control pollution and improve combustion efficiency. The resistivity of the oxide semiconductor varies depending on the oxygen partial pressure of the atmospheric gas. The new design overcomes the problems of conventional resistive sensors, such as high temperature-dependence, circuit complexity, and the natural high resistivity of oxide semiconductors. The sensor operates best between 200°C and 1000°C, easily withstanding those temperatures. At one atmosphere, it can measure the partial pressure of oxygen between 6% and 60%.Background past solid electrolytes mainly oxygen sensors automobiles type measures difference partial pressures reference electrode measurement always Consequently problem structure complex miniaturization difficult resolve resistance-type |
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