Parker-Hannifin Corporation
APPARATUS AND METHOD FOR TESTING ELECTROMAGNETIC INTERFERENCE DEVICES WITHIN A LINE REPLACEABLE UNIT

Abstract:

A system and method for testing a network of electromagnetic interference components within a unit under test (UUT) of an aircraft, the UUT having at least one of an input port or an output port electrically coupled to the network, the method including: generating a radio frequency (RF) signal swept over a prescribed frequency range; applying the generated RF signal to the UUT; measuring a resultant signature at the at least one input port or output port; comparing the measured resultant signature with a baseline signature corresponding to the respective at least one input port or output port, the baseline signature representing normal operation of the UUT; and determining the UUT is out of specification when the measured signal and the baseline signature do not correspond to one another within a prescribed envelope.