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HEAD News Herzogenrath (Germany), March 10, 2015
Accredited measurements based on HEAD technology
The NVH laboratory of HELLA relies on products from HEAD acoustics to achieve the highest laboratory standard ISO/IEC 17025
Source: HELLA KGaA Hueck & Co., Lippstadt, Internet: www.hella.de
In the collaborations with their suppliers, automotive manufacturers demand reproducible and precise results. Compliance with the laboratory standard ISO/IEC 17025 is the necessary basis for meeting this requirement worldwide. For this reason, HELLA has had several of its environmental testing labs certified according to this standard.
Regarding the NVH laboratory this includes, for example, sound power measurements according to ISO 3744 as well as measurements based on customer-specific standards. Besides sound measurements, a multitude of standardized testing methods in the area of vibration tests have been certified. HELLA relies on powerful products at the cutting edge of technology for the tests they conduct. Apart from their anechoic and semi-anechoic rooms (both fully certified class 1 rooms) and a multitude of state-of-the-art vibration control systems, HELLA operates comprehensive software packages of ArtemiS suite and various frontends from the HEAD acoustics portfolio.
For sound power measurements, HELLA uses an 18-channel front end of the HEADlab series. For vibration tests, up to two SQuadriga II frontends are used in parallel. The excellent flexibility of the mobile recording and playback frontend also allows HELLA to operate the measurement equipment at their customers’ sites. 100-percent compatibility with existing microphones, accelerometers, artificial heads, and laser measurement systems completes the powerful solution for sound measurements and vibration tests.
As an indispensable support service, HEAD acoustics offers DKD calibration according to the laboratory standard ISO/IEC 17025. It is mandatory for hardware to be subjected to this in order to ensure that the parameters are reproducible. The precision of the measurement system tested in this way is the basis for compliance with the high requirements of the standard.
For the next stage of expansion of the NVH laboratory, HELLA is planning an additional measurement room. This room with special wall coating will be used for professional recordings and analysis of squeak and rattle noise at specific temperatures. The consistent use of HEAD acoustics hardware and software products provides the technological basis for these measurements.
Contact:
Marketing NVH
HEAD acoustics GmbH
Ebertstrasse 30a,
52134 Herzogenrath
Germany
Tel.: +49 (0) 2407 577-7806
Fax: +49 (0) 2407 577-99
E-Mail:    Marketing-NVH@head-acoustics.de
About HEAD acoustics GmbH:
HEAD acoustics has developed into one of the world's leading specialists in the fields of sound and vibration analyses and optimization. For more than 25 years HEAD acoustics has developed products and solutions for artificial head recording and playback technology, exceptional acquisition and analysis software and techniques, and communication measurement technology.
   
 
HEAD acoustics GmbH

Ebertstraße 30a
52134 Herzogenrath
Germany

E-mail: info@head-acoustics.de
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