ELECTRICALLY CONDUCTIVE POLYMERS AS SENSING MEDIA TO DETECT LEAKS IN AEROSPACE PNEUMATIC DUCTS

摘要

A leak detection system for a high-temperature aerospace fluid duct may include a rigid metal fluid duct, an electrically conductive polymer disposed around the high-temperature fluid duct, the conductive polymer configured to melt in response to a leak of high-temperature fluid from the high-temperature fluid duct. The system may include a sensor configured to monitor at least one electrical characteristic of the electrically conductive polymer. The system may include a layer of insulation disposed between the electrically conductive polymer and the high- temperature fluid duct.