Laptop displaying data charts connected to measuring equipment on an industrial unit.

LMS Test.Xpress for Efficient Noise & Vibration Tests

Traditional analyzers are extremely flexible tools for qualifying the noise, vibration or durability of products. They are easy to operate and immediately show the frequency content of a vibration, sound or fatigue signal. They are, however, also very limited.

Spectral analysis software showing graphs and data, including a spectrogram and frequency spectrum, with numerical data on the right.

Throughput recorder

Parallel to the analyzer applications, LMS Test.Xpress can function as a throughput recorder. The system directly streams data to disk and saves long data sequences at high bandwidth while maintaining flexible data visualization and manipulation. Throughput of data is also possible in standalone mode. Full data security is ensured with parallel data throughput to a personal computer (PC) and CompactFlash card.

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FFT analyzer

The functionality in LMS Test.Xpress offers real-time analysis of FFTs, power spectral densities (PSD), crosspowers, frequency response function (FRF), coherences, etc. Users can determine resonances, damping values or harmonic content from the frequency spectrum. All functions can be averaged or tracked to a specific channel.

Software interface displaying multiple waveform graphs in different colors, with numerical data and controls on the side.

Modal impact testing

LMS Test.Xpress Modal Impact Testing software supports interactive and easy measurement using impact hammer excitation according to roving or fixedhammer techniques. The calibration wizard guides the user through the calibration process. Calibrator, channel information and data visualization in time and frequency domains are clearly displayed. Impact hammer trigger detection is fully automated with the trigger detection wizard.

Close-up of a laryngoscope with a lighted end and cable, used for medical examinations of the throat and larynx.

ISO sound intensity and source localization

LMS Test.Xpress optimally supports sound intensity-based ISO certification tests for both point and scanning methods. Critical results such as ISO field indicators (F1, F2, F3 and F4), calculated levels (sound power, sound intensity and pressure intensity) are presented in tabular format. Corrective actions are suggested if the ISO criteria are not met.

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