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- W2334786057 abstract "In modern aircraft, the use of engine monitoring systems to develop performance trend lines relies upon the systems’ precision (i.e. repeatability). This paper describes an investigation of precision error in the turbofan engine monitoring system of a modern fighter, based on steady state and transient data records. Both the aircraft data acquisition system and a ground-based system of known precision error were used to measure engine-mounted sensor outputs, the result being an estimate of sensor precision. Sensor precisions were also determined based on manufacturers’ specifications. Furthermore, based on steady state and transient aircraft data, a method was devised for estimating overall system precision. From this information, it was concluded that (1) precision errors in sensing are markedly lower than those incurred in conditioning and processing engine data and (2) possible improvements to the monitoring system are constrained by data sampling rates and digital word formats. Precision error intervals for engine data were obtained so that the significance of shifts in engine performance could be assessed." @default.
- W2334786057 created "2016-06-24" @default.
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- W2334786057 date "1988-06-06" @default.
- W2334786057 modified "2023-09-26" @default.
- W2334786057 title "Precision Error in a Turbofan Engine Monitoring System" @default.
- W2334786057 doi "https://doi.org/10.1115/88-gt-229" @default.
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