The LMS Test.Lab 16 Channel Harmonic Analysis system offers online and offline order analysis based on narrow-band waterfall spectra and color-maps, measured on rotating equipment in operating conditions. Data acquisition is conducted on the SCADAS Mobile front-end with two embedded tacho inputs, supporting 16 channels for ICP® and Voltage signals (including quasi-static parameters), which can be expanded to 40 channels in a single frame.
With the Signature Testing workbook from the LMS Test.Lab 16 Channel Harmonic Analysis solution, spectral data and orders can be measured and processed repeatedly in accordance with custom procedures, making use of pre-defined templates with specified display layouts and measurement settings.
LMS Test.Lab 16 Channel Harmonic Analysis supports acquisition during run-ups, run-downs or sequences of both, at user defined time or rpm intervals. Derived tacho channels enable online monitoring of secondary quantities, such as rotational speed on another axis or vehicle speed. The many online processing and visualization formats include RMS-levels, waterfalls and order-, frequency- octave and psycho-acoustic sections. With online derived channels, the engineer can add virtual channels by recombining the signals measured on physical channels using both basic and advanced mathematical operations. The multiple sample rates permit the amount of saved data to be reduced by acquiring the vibration channels at a lower sampling rate, while keeping the high sample rate for the acoustic channels. Online reference curves can be used as design targets to validate the current design or can be applied to check the repeatability of multiple runs.
Offline post-processing offers a list of functions for global problem characterization and for gaining a deeper insight into the physical processes.
