Automotive industry / NVH
overview
Our offer for automobile applications includes fully automatic wind noise test benches, multi-channel instruments, microphones, accelerometers and force sensors, piezoelectric pressure sensors, shakers and comprehensive accessories.
The basic features of the SAMURAI software already provide a wide range of possible applications for our measurement technology in the development of vehicle components as well as in quality control (e. g. vibration analysis on vehicle parts, sound measurements in the vehicle or on the outside, human body vibration analysis on the driver seat, pressure analysis on hydraulic or pneumatic components).
The compact and robust design makes the Soundbook especially well-suited for field and test track measurements.
In combination with the large 10.4" display of the Soundbook the real-time analysis already enables a first evaluation while still measuring.
Various file export formats (e. g. WAV, HDF 5.0, MDF 3.0, UFF, ASCII Raw Signal) also allow post-processing of the measured data using third-party software.
Additional application fields in the automobile industry are provided by the SAMURAI options "Order Tracking", "Virtual Tacho", "Vibration Meter", etc.
A satellite-aided measurement system for
pass-by measurements according to ISO 362/08, DIN ISO 362-2:2010-05, 2001/43CE and ISO 13335 further extends our automobile portfolio.
wind noise test benche
The noise level in the passenger compartment of a car is one of its most important quality characteristics. Electric drives create a completely new noise situation in the passenger compartment. The once predominant sounds of the combustion engine have now faded away, allowing the noises produced by the wind and the rolling tires to take center stage. Unwanted noise caused by the wind often arises from leaks in the doors, roof or windows, or from improperly installed mirrors or other parts exposed to the wind.
Thanks to our many years of experience, several fully automatic wind noise test benches, equipped with our software and hardware, are now being used successfully in end-of-line testing by various manufacturers.
With our partners we are also able to offer complete blow-nozzle test stands.
The principle of the nozzle test bench is that a nozzle gate moves over the vehicle and blows air onto the vehicle, simulating the air flow at a speed of approximately 140 km/h. The measuring microphones, which are attached to the passenger compartment of the vehicle send the sound signals wirelessly to a multi-channel acoustic measuring system. Here the corresponding analyzes are carried out for each channel in real time and compared with previously determined limit values. An automatic pass/bad statement is then made for the various measuring positions of the moving blow-nozzle gate, which is transmitted to OPC server.
The entire wind noise test can be easily integrated into a production line.
Inspecting the vehicles only takes about 2 minutes. A complete IT connection enables an automated test process and a central archiving of the quality-relevant vehicle-specific measurement data.
