Electro-hydraulic actuator tester for fly-by-wire aircrafts
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An 8051-based microcontroller tester has been designed to reduce troubleshooting time of the Electro-Hydraulic Actuators (EHA) installed in fly-by-wire aircrafts. The tester algorithm first evaluates EHA pressure and position sensor signals to emit either a pass or fail message. The evaluation is based on predefined ranges of EHA pressure and position signals. Next, the instrument tests the EHA response capability - a way of dynamic response evaluation, again issuing a suitable response. The instrument proved to be reliable after being successfully evaluated in laboratory and in a real model test airplane. © 2007 IEEE.
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Aircraft maintenance, Electro-hydraulic actuator, Fly-by-wire, LVDT, Actuators, Aircraft, Dynamic response, Maintainability, Mathematical models, Microcontrollers, Electro-Hydraulic Actuators (EHA), Fail message, Sensor signals, Electrohydrodynamics
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Conference Record - IEEE Instrumentation and Measurement Technology Conference.
