Patent ID: 11914003
Assignee: ROSEMOUNT AEROSPACE INC.
Field: Measurement (Instruments)
Classification: CPC G  H  B | IPC G  H

Claim 0:
1. A system for predicting failure of a resistive heating element of an air data probe, the system comprising:
an electrical power source that provides electrical operating power to the resistive heating element;
an electrical sensor that senses electrical current provided to the resistive heating element;
a high-frequency signal detector that detects high-frequency components of the electrical current sensed and detects high-frequency components of voltage of the electrical operating power provided to the resistive heating element; and
a remaining-life prediction engine that estimates a remaining life of the resistive heating element based on high-frequency components of the electrical current detected, wherein the remaining-life prediction engine estimates the remaining life of the resistive heating element based on a ratio of the high-frequency components of the electrical current detected to the high-frequency components of the voltage of the electrical operating power provided to the resistive heating element.