A system and method for monitoring the health of a heater (20) connected to a power supply by first and second power leads which conduct an inlet and outlet current, respectively. The system includes an injection transformer (50) with a number of primary turns that are inductively coupled to the first power lead, a signal generator (70) configured to generate and supply a time-varying injection signal to the primary turns thereby imposing the time-varying injection signal on the inlet current, and a signal reader (80) configured to receive a diagnostic signal from the heater, filter the diagnostic signal to pass a frequency associated with the time-varying injection signal, and produce a heater capacitance signal that is indicative of a capacitance value of the heater, where the heater capacitance signal is indicative of the health of the heater.
PROGNOSTIC HEALTH MONITORING FOR HEATER
PROGNOSTISCHE ZUSTANDSÜBERWACHUNG FÜR HEIZUNG
SURVEILLANCE PRONOSTIQUE DE L'ÉTAT D'UN DISPOSITIF DE CHAUFFAGE
2024-03-13
Patent
Elektronische Ressource
Englisch
IPC: | G01P MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK , Messen der Linear- oder Winkelgeschwindigkeit, der Beschleunigung, der Verzögerung oder des Stoßes / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / H05B ELECTRIC HEATING , Elektrische Heizung |