Well before you reach the factory gates, you can see them towering in the distance: the booms of the huge mobile cranes that undergo the most rigorous testing here on the test site at Ehingen, Swabia (Germany) before they are delivered to every corner of the world. To meet its own high standards, Liebherr opts for the cerTEST mobile test system from Kistler for all the power tools in its production facility.

The increasing popularity and growing offering of electric vehicles (EVs), are changing many aspects associated with vehicle sound and acoustics (see our posts related to the in-cabin soundscape of the EV, for example). The classic issue of pass-by noise testing is no exception. Still a crucial aspect of automotive design and regulation, it has evolved to ensure that EVs (and other vehicles) not only meet the maximum noise limits set by various national and international regulations, but also adhere to new minimum noise requirements.

Engineers may add a device to their vibration control setup to perform an independent measurement.