Analysing noise and vibration measurements according to standards

imc Test & Measurement now offers imc WAVE 2022 – a powerful software for standard-compliant noise and vibration analysis with imc data acquisition systems. Comprising four analysers, it provides a comprehensive range of analysis functions for sound pressure and sound power measurement, structural analysis and the analysis of vibrations and rotating machines. The software guides users from configuration to calibration and measurement to professional report in a few steps, lessening setup time and providing reliable results for less experienced users in NVH. Typical applications may be discovered in mobile or stationary setups: testing of prototypes, machine monitoring, and test stands for development or end-of-line.

Microphone signals are processed simultaneously, and sound level, sound pressure and sound power are determined online according to the relevant standards. The imc WAVE noise analyser offers a comprehensive set of functions for this purpose, such as FFT and octave or third-octave spectra as 2D or 3D diagrams (waterfall). Furthermore, microphones can be calibrated within the analyser.

Vibrations in machine monitoring and diagnostics may be analysed with imc WAVE vibration: It offers advanced evaluation tools for characteristic parameters according to established standards.

imc WAVE rotation evaluates data online through the operation of rotating machines. Based on speed calculations from pulse signals, it transforms signals to angle domain and displays the vibration process as an order spectrum.

imc WAVE structure determines structural dynamic problems in components: It calculates transmission functions and resonance frequencies to analyse the vibration behaviour, bending and torsional stiffness.

imc WAVE 2022 follows a comprehensive approach in analysing the origins, propagation paths and effects of noise or vibrations: As well as sound and vibration signals, it also includes other physical measurement variables, such as force, speed, pressure, temperature or digital fieldbus data. It works seamlessly with all imc data acquisition systems. Its components can also be incorporated directly into the imc STUDIO measurement software platform to provide automated test benches with NVH functionality. A complete NVH solution is offered with the microphones and hemispheres from GRAS Sound and Vibration.