Abstract:
Because of the significant importance of the gas-turbine engines as it is
the core of the aircraft, the engine health status should be tested periodically.
Testing methodologies are needed to conduct the engine tests required as a part
of airworthiness certification.
In this project a data acquisition system was developed as a gas turbine
engine testing system. This system was developed to monitor the engine
parameters to determine its condition and to control the engine starting
components according to specific sequence. A PIC microcontroller from
Microchip was used as the heart of the data acquisition system. Internal analog
to digital converters acquired data from the analog signals . The analog signals
gathered from temperature, tachogenerator, throttle, and pressure sensors will be
transformed into digital format and then the corresponding data will be sent
serially to the PC through the microcontroller serial port. After the data was
received by the PC, visual basic program was designed to convert, scale, and
display these data . After the data was displayed the system will analyze and
compare these data with standard values according to the current position of the
throttle. If there is an abnormal values the system will provide automatically a
trouble shooting list in order to determine where the problem is.
The developed test system had been applied successfully and the results
are accurate, reliable and acceptable.
