公开(公告)号：EP3671223A1

公开(公告)日：2020-06-24

申请号：EP19216159.4

申请日：2019-12-13

Applicant: ROSEMOUNT AEROSPACE INC.

Inventor： ESSAWY, Magdi A. ,  BUI, Minh ,  GASSER, John D.

IPC: G01P5/165 ,  B64D43/02 ,  G01P13/02 ,  G01P21/02 ,  B64D15/12 ,  G01F1/46

Abstract: A system for an aircraft includes a heater (14) comprising a resistive heating element (22) and insulation (24) surrounding the resistive heating element (22). A first current (I 1 ) flows into the resistive heating element (22) to provide heat and a second current (I 2 ) flows out of the resistive heating element (22). The system further includes a leakage sensor (17C) configured to produce a leakage sensor signal (V L ) representing a leakage current (I L ) from the heater (14) and a prediction processor (20) configured to predict heater failure based on the leakage sensor signal (V L ).