CPC G01R 31/008 (2013.01) [G01R 31/11 (2013.01)] | 9 Claims |
1. A method for detecting an electric arc in an electric line of an avionics system, said electric line being supplied by an AC voltage at a first frequency (f1), said AC voltage being composed of a succession of alternate half-periods,
said method includes a step of injecting a diagnosis signal into the electric line, the diagnosis signal being a MultiCarrier Time Domain Reflectometry, MCTDR, signal;
wherein the step of injecting comprises injecting the MCTDR signal into the electric line during an injection time window (ti) which is included in a half-period (t1) of the AC voltage and which is synchronized on the one hand to include a time of the said half-period at which an arc current is statistically potentially maximum and on the other hand to exclude part of the half-period at which the arc current is statistically less significant.
|