Shielded-twisted-pair Cable Model For Chafe Fault Detection Via Time-domain Reflectometry
by Nasa Technical Reports Server (ntrs)
2021-01-26 13:44:10
Shielded-twisted-pair Cable Model For Chafe Fault Detection Via Time-domain Reflectometry
by Nasa Technical Reports Server (ntrs)
2021-01-26 13:44:10
This report details the development, verification, and validation of an innovative physics-based model of electrical signal propagation through shielded-twisted-pair cable, which is commonly found on aircraft and offers an ideal proving ground for de...
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This report details the development, verification, and validation of an innovative physics-based model of electrical signal propagation through shielded-twisted-pair cable, which is commonly found on aircraft and offers an ideal proving ground for detection of small holes in a shield well before catastrophic damage occurs. The accuracy of this model is verified through numerical electromagnetic simulations using a commercially available software tool. The model is shown to be representative of more realistic (analytically intractable) cable configurations as well. A probabilistic framework is developed for validating the model accuracy with reflectometry data obtained from real aircraft-grade cables chafed in the laboratory.
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