Importance

Loading Importance Indicators...

Abstract

A vibration monitoring system analyzes tachometer signals of a rotating engine to ascertain the period of rotation from which sampling pulses at predetermined intervals can be generated. Sampled accelerometer data is processed by a nonrecursive tracking digital filter to determine peak velocity or displacement of rotating engine. In a different operating phase, apparatus determines the rotational location of the peak relative to an index or reference point on the rotating engine. The magnitude and location of the peak can be signaled for subsequent correction of the imbalance. The rotational velocity is monitored so that changes in velocity during a measurement invalidate the results and cause a repetition of the measurement cycles.

Loading the Abstract Image...

First Claim