DEVICES FOR DETECTING AND PROCESSING VIBRATIONS OCCURRING IN THE MOVING BLADES OF A ROTARY COMPRESSOR OR SIMILAR APPARATUS

摘要

A device for detecting vibrations in the moving blades of a rotary compressor, comprising a pick-up implanted in the internal edge of the pick-up, the signal from which is applied exclusively to an electronic circuit comprising means for deriving from it the modulation ratio and for deriving from said ratio, when it exceeds a predetermined threshold, an electrical signal. The application of this device is to the suppression of vibrations due to airflow break-up or break-away effects in the blading of aircraft jet engine compressors.