公开(公告)号：US10962580B2

公开(公告)日：2021-03-30

申请号：US16220823

申请日：2018-12-14

Applicant: Rosemount Aerospace Inc.

Inventor： Magdi A. Essawy ,  Marvin Onken

IPC: G01R31/00 ,  B64D45/00 ,  B64D15/12 ,  B64F5/60 ,  G01R17/00 ,  G01R19/165

Abstract: A system for an aircraft includes an aircraft component that includes a heater routed through the aircraft component, the heater including a resistive heating element and insulation surrounding the resistive heating element. A first current flows into the resistive heating element to provide heating for the aircraft component and a second current flows out of the resistive heating element. The system further includes a first sensor configured to produce a first sensor signal representing the first current, a second sensor configured to produce a second sensor signal representing the second current, a leakage sensor configured to produce a leakage sensor signal representing a leakage current, and a signal processor configured to sample and measure the first current, the second current, and a leakage current using a high frequency sampling rate to identify the presence of electric arcing. The detection of electric arcing is used to predict future heater failure and estimate heater remaining useful life.