Flight Data Monitoring

FDM (Flight Data Monitoring) is a system to identify, quantify and assess risk based on logging of flight information. Fhght data analysis makes it possible to detect deviations from normal operations and normal procedures, thereby pinpointing areas of improvement. 

Wright, D. A. and Lyons, J. E. (2001). Flight Data Monitoring Its place within a Safety Management System. Paper presented at the 13th European Aviation Safety Seminar Toward a Safer Europe, Amsterdam, Netherlands. 

Cass, G. R M. H. Conklin, J. J. Shah, J. J. Huntzicker, and E. S. Macias, Elemental Carbon Concentrations Estimation of and Historical Data Base, Atmos. Environ., 18, 153-162 (1983). Castaldi, M. J., and S. M. Senkan, Real-Time, Ultrasensitive Monitoring of Air Toxics by Laser Photoionization Time-of-Flight Mass Spectrometry, J. Air Waste Manage. Assoc., 48, 77-81... 

The data are collected as detected counts versus time-of-flight and must be divided by the monitor spectrum to remove the variation of the incident flux with energy. Time-of-flight and energy transfer are not linearly related, see Eq. (3.12) and data are collected in short (>3 ps ), equal time-periods, or bins, and these correspond to broader and broader energy steps across the spectrum. After conversion into an energy transfer versus S(Q, co) spectrum, the spectra in individual detectors are added. The conversion to energy makes use of the parameters extracted from the calibration procedure. 

To obtain S(Q,a>) from the measured data it is necessary to know the instrumental flight paths, the energy of the incident neutrons and the angles of the detectors. The incident energy is found from the beam monitors. The first monitor is normally placed before the Fermi chopper to monitor the incident flux for the purposes of normalisation. The... 

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