Measurement device for rapid, early detection of faults in components exposed to mechanical strain.

This innovation comprises a novel measurement device which uses the structure-
borne noise of a moving component to detect whether there is a fault in it. The
methods used up to now have specific disadvantages in their current application.
Normal spectrum analyses of structure-borne noise, for example, usually rely heavily
on assumptions about the operating environment, are highly computer-intensive and
are effectively blind to weak and static signals with an unstable phase position.
The novel measurement device bases its analysis on the entropy value calculated
from the probability of the different frequencies of the structure-borne noise. A
possible fault can therefore be detected at an early stage and in a reliable manner
without any additional assumptions.

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