Importance

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Abstract

The invention relates to a monitoring process of the state of health of at least two vibration sensors of a twin turbomachine comprising a low-pressure body and a high-pressure body, a vibration sensor being located at the front of the turbomachine, a vibration sensor being located at the rear of the turbomachine, each of the sensors being configured to measure vibrations of the low-pressure and high-pressure bodies at the front and at the rear of the turbomachine, the process being executed in a processing unit (20) of the turbomachine communicating with each of the sensors and comprising the following steps:

reception of the low-pressure (NBP) and high-pressure (NHP) speeds of the turbomachine and when said speeds are simultaneously in predetermined ranges,reception of the front and rear vibratory levels of the low- and high-pressure bodies registered by each sensor;determination of the average of the values of the vibratory levels of the low- and high-pressure bodies received over a predetermined reception period;determination of the state of health of said at least first and second vibration sensors from comparison of the average values of the vibratory levels of the low- and high-pressure bodies determined at predetermined thresholds.

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First Claim