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Flame monitoring of a gas turbine combustor using multiple dynamic pressure sensors in multiple combustors
Flame monitoring of a gas turbine combustor using multiple dynamic pressure sensors in multiple combustors
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机译:使用多个燃烧器中的多个动态压力传感器对燃气轮机燃烧器进行火焰监测
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摘要
The state of a flame in a subject combustor of a gas turbine engine is acoustically monitored using a dynamic pressure sensor within the subject combustor and one or more additional sensors in nearby combustors. Dynamic pressure sensor output signals from the sensors are cross correlated to identify acoustic oscillations generated by a flame in the subject combustor and received by the sensors. The cross correlation may be constrained by a maximum time delay between correlated components of the signals, based on physical characteristics.
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