Method for detecting a failure of a vibration sensor for an engine part

摘要

The invention relates to a method for detecting (S) a failure of a sensor (1), said sensor (1) being configured to detect at least one vibration of a part of an engine, in particular of a aircraft engine, and to supply an electrical voltage representative of the detected vibration, the detection method comprising the following steps: S1: measure a voltage supplied by the sensor (1), S2: compare the voltage thus measured with a first threshold predefined, S3: when the voltage is greater than the first predefined threshold, determine at least one shape parameter from the measurements of the voltage supplied by the sensor (1), S4: compare the shape parameter thus determined with a second predefined threshold and S5: generate a failure signal when the shape parameter exceeds the second predefined threshold.