LMS Revises Test Lab System

LMS International has released the latest version of LMS Test.Lab, its integrated technology for noise and vibration testing and engineering. LMS Test.Lab Rev 10A has been designed to offer improvements in productivity and efficiency. It also introduces applications such as Time Domain Transfer Path Analysis (TPA) and MIMO FRF testing and solutions for acoustic testing.

'With the integration of new acoustic testing capabilities and transfer path analysis techniques, test engineers can more efficiently trace where a sound is coming from and what the root cause is of particular noise and vibration issues,' said Bruno Massa, vice-president, test division, LMS International. LMS Test.Lab Rev 10A delivers a new extension to the LMS Test.Lab Transfer Path Analysis capabilities: LMS Test.Lab Time Domain TPA.

This application complements frequency domain TPA and is suitable for the analysis of transient phenomena. With this extension, LMS now offers a complete portfolio of TPA solutions for a broad spectrum of applications. The LMS Test.Lab MIMO FRF testing extends the modal testing techniques in LMS Test.Lab. With this, users can specify their excitation signals, define a shaped amplitude spectrum and extend the application to multi-sine excitation. LMS Test.Lab Rev 10A integrates new acoustic testing capabilities and scalable solutions for sound testing and analysis.

The Sound Quality solution has also been extended with psycho-acoustic metrics used in the automotive, aerospace and white goods sectors. The LMS Test.Lab Sound Intensity's geometry module has been extended with a 3D acoustic mesh generator. The intensity data sheet presents a clear overview of all measured and processed data, quality indicators and related components. User can analyse, browse and interpret data for sound power, source ranking and sound source localisation.

The LMS Test.Lab Rev 10A high-definition acoustic camera supports both real-time far-field and real-time near-field sound-source localisation. The camera's array with wide-angle lens provides sharp pictures even when taken close to the structure. For interior sound-source localisation with maximum accuracy, the new LMS Test.Lab 3D acoustic camera has a laser that automatically scans the geometry without operator intervention.

During the scanning, pictures are taken to obtain a full 3D photorealistic image of the vehicle. With this solution, users can quickly spot sources of interior noise problems. LMS Test.Lab Rev 10 takes advantage of the E-series signal conditioning input modules of LMS Scadas. The E-modules provide a hardware-based solution to ensure faster test set-up and accurate measurements without data loss, even for demanding applications with high-channel count.


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