S3DR-EMU
SES Solid State Data Recorder Engine Monitoring Unit
Description
The S3DR-EMU (Engine Monitoring Unit) provides a rugged solution for engine usage, operation monitoring and data recording. A version of the EMU has already been certified by the FAA as part of the Rolls- Royce Corporation Model RR300 gas turbine engine as used on the Robinson R66 helicopter. Another version of the EMU has been supplied for use on the BAE Systems Mantis UAV.
The EMU can monitor and record power turbine and gas generator shaft speeds, engine torque and exhaust gas temperature from the existing engine sensors together with its own internal temperature. From these measurements, the EMU derives a number of event counters including number of engine starts, turbine over-temperature incidents and accumulated engine run time. The EMU also checks the measured engine parameter values against pre-programmed limits. If a limit is exceeded, a high (time) resolution ‘snapshot ’ (with pre- trigger data) of the event is recorded, event counters incremented and local and remote warning indicators are illuminated.
Recording duration is in excess of 2,000 hours to allow a complete history of the engine to be recorded between its major overhauls. For critical engine sensors, that are also used to drive pilot displays, the EMU input circuits are designed with a number of features, including electrical isolation to ensure fail- safe operation.
The S3DR-EMU provides a high speed USB 2.0 data-download interface, to allow data to be extracted from the unit using the SES ‘REVEAL-EMU’ data download software. The software and hardware design architecture is scalable to allow the number of recorded interfaces to be expanded.
Data Download Software: The REVEAL-EMU data download software allows the engine manufacturer to export/review detailed data associated with exceedance events, as well as historical data from all runs of a given engine. The REVEAL-EMU offers differing levels of access to the recorded data depending on the defined user type. Initial fault or exceedance identification data is accessible to the aircraft/engine operator Advanced features, such as transfer of data between units and modification of exceedance detection thresholds are available to the engine manufacturer via password protected facilities.
At the simplest level, REVEAL-EMU provides a quick look facility for engine statistics, faults and incidents. At its most complex level, it provides engine data download facilities, graphical and tabular data displays, complex search facilities and the ability to modify incident detection threshold levels in the EMU itself.
Features
- Rugged and Reliable
- Input Circuit Design Ensure Electrical Isolation
- Dedicated Export and Analysis Software
Applications
- Engine Monitoring