Order Tracking Option
Order tracking is the analysis of the vibrations or noise of rotating machines. This is done by normalizing frequencies in the spectrum to their respective speed, i.e. presented as orders. The order is a multiple of the speed.
In FlexPro 2021, order tracking was changed to a completely new procedure. The core methods of the option are the Revolution Synchronous Order Tracking analysis object and the Order Filter analysis object. In both methods, the underlying signal sampled over time is first transformed into the revolution domain. This enables effective order tracking performance, either by ordinary spectral analysis in the revolution domain (the Revolution Synchronous Order Tracking analysis object), or by means of bandpass filtering of individual orders in the revolution domain (the Order Filter analysis object). The transformation into the revolution domain can also be performed independently with the help of the Revolution Synchronous Sampling analysis object. In addition, the option includes the Harmonic Filter analysis object, which can be used to remove or extract harmonic components of a selected order from time signals.
Alternatively, the Order Tracking analysis object (deprecated, removed from Gallery in FlexPro 2021) can be used. With the help of this analysis object, the vibration signals measured at a certain speed are directly subjected to a Fourier transform (FFT). This analysis object provides similar results to the analysis objects Revolution Synchronous Order Tracking and Order Filter newly introduced with FlexPro 2021, but are generally preferred. The Split Orders and Acceleration Hyperbola Family analysis objects (also deprecated) support presentation of the results of the Order Tracking analysis object. The deprecated order tracking analysis objects which were removed from the Gallery with FlexPro 2021 can still be viewed in the Gallery via File > Options > System Settings. Activate this option if you want to continue using the deprecated analysis objects in new projects (not recommended).
Analysis Objects
Revolution Synchronous Order Tracking
Revolution Synchronous Sampling
Acceleration Hyperbola Family (deprecated)
FPScript Function