OnBoardSAS (On Board Spectrum Analysis System) intended as a preprocessing stage for a health monitoring system on board an aircraft. It receives analog data from various sensors (vibration sensors, microphones etc.), conditions and digitizes the signals, performs the necessary FFT processing on a DSP processor,rescales the frequency axis on a fraction of octave scale, and finally outputs the reformulated spectrum in terms of octave bands fraction on a serial RS422 link.
System dimensions (mm) L x W x H = 145 x 96 x 47 This product is designed for Alenia Aeronautica
System Key Features:
Spectral representation: 1/x of octave, x = octave band fraction, x= 1,3
Analysis of up to four analog input signals
Two I/O serila ports: RS232 for system parametrization and programming, RS422 for system output.
Frequency Range: 8KHz
Sampling Frequency: 16384 Hz
Frequency Resolution: 1Hz
High performance: THDpN = 96dB, DR = 102dB Crosstalk= 102dB
Facility for system expandability to up to twelve analog inputs
In house windows XP application software for system programming and data acquisition
OnBoardSAS (On Board Spectrum Analysis System) intended as a preprocessing stage for a health monitoring system on board an aircraft. It receives analog data from various sensors (vibration sensors, microphones etc.), conditions and digitizes the signals, performs the necessary FFT processing on a DSP processor,rescales the frequency axis on a fraction of octave scale, and finally outputs the reformulated spectrum in terms of octave bands fraction on a serial RS422 link.
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