VERFAHREN ZUR MESSUNG DER DREHZAHL EINES ROTIERENDEN TEILES

摘要

The description relates to a process for measuring the rotation speed of a rotating component which is completely surrounded by a casing and to a device for implementing said process, in which the current signal generated by the rotating component, after having been suitably processed in digital form, is subjected to two Fourier transformations and the rotation speed is determined from the spectrum obtained following the second Fourier transformation. Here, the rotation speed is found from the time (tx) corresponding to the maximum x of the spectrum, which is directly proportional to the rotation speed n.