Final report on development of Pulse Arrested Spark Discharge (PASD) for aging aircraft wiring application.

Lockner, Thomas Ramsbeck ; Howard, R. Kevin ; Peña, Gary Edward ; Schneider, Larry X. ; Higgins, Matthew B. ; Glover, Steven Frank

Sandia National Laboratories

关键词: Aging;    Aircraft.;    Electric Wiring.;    Coaxial Cables;    42 Engineering;   

DOI  :  10.2172/896561
RP-ID  :  SAND2005-2638
RP-ID  :  AC04-94AL85000
RP-ID  :  896561

美国|英语

来源: UNT Digital Library

【 摘 要 】

Pulsed Arrested Spark Discharge (PASD) is a Sandia National Laboratories Patented, non-destructive wiring system diagnostic that has been developed to detect defects in aging wiring systems in the commercial aircraft fleet. PASD was previously demonstrated on relatively controlled geometry wiring such as coaxial cables and shielded twisted-pair wiring through a contract with the U.S. navy and is discussed in a Sandia National Laboratories report, SAND2001-3225 ''Pulsed Arrested Spark Discharge (PASD) Diagnostic Technique for the Location of Defects in Aging Wiring Systems''. This report describes an expansion of earlier work by applying the PASD technique to unshielded twisted-pair and discrete wire configurations commonly found in commercial aircraft. This wiring is characterized by higher impedances as well as relatively non-uniform impedance profiles that have been found to be challenging for existing aircraft wiring diagnostics. Under a three year contract let by the Federal Aviation Administration, Interagency Agreement DTFA-03-00X90019, this technology was further developed for application on aging commercial aircraft wiring systems. This report describes results of the FAA program with discussion of previous work conducted under U.S. Department of Defense funding.