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Field case · Condition monitoring

Gearbox cracked tooth: time waveform, autocorrelation and a circular plot used together

Quick answer

A cracked gear tooth was identified by putting three views side by side: the time waveform to see irregularities, an autocorrelation signal to make the repeating fault stand out, and a circular plot to place it on the gear.

Case summary by Rotec AI · Last reviewed 6 November 2026

What the case covers

Takeaway. Waveform, autocorrelation and circular plot give three views of one fact: a tooth hits at the same angle every turn.
Read the full case, with the data and the numbers

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