ONBOARD DISTRIBUTED CONTROL AND LEAKS DIAGNOSTICS SYSTEM BASED ON TECHNOLOGIES OF PHOTONICS Russian patent published in 2019 - IPC G01M9/04 G01B11/16 

FIELD: aviation.

SUBSTANCE: invention relates to aircraft engineering, particularly, to control and diagnostics systems of aircraft general aviation systems. On-board distributed leakage monitoring and diagnostics system comprises at least one fiber-optic sensor, a converter unit, which comprises a tunable erbium fiber laser, a communication unit, a thermal stabilization unit, a power supply unit and a processing board which consists of at least one optical splitter, photodetector, amplifier, analogue-to-digital converter, programmable logic integrated circuit, central signal processor. Input of each optical splitter of processing board is optically connected to radiation source and each fiber-optic sensor, and each output of the optical splitter is in series connected to the photodetector, at the output of which an analogue signal is formed to the input of the amplifier, wherein the output of the amplifier is connected to the input of the analogue-to-digital converter, at the output of which the signal converted into digital is sequentially supplied to the programmable logic integrated circuit and the central signal processor, which is connected to the communication unit, wherein the communication unit is connected to the tunable radiation source and the thermal stabilization unit.

EFFECT: increased flight safety due to expansion of functional capabilities of onboard control and diagnostics systems.

1 cl, 7 dwg