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Technical service provider and
supplier for simulation and testing

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Acoustic test bench development and service

Our services for
EoL test benches

Acoustic test bench concept

Novicos supports you with experience and know-how in the development of concepts for acoustic test benches.

  • Definition of test targets

    We examine the component with regard to its function, materials, typical wear or fault patterns and acoustic properties and support you in formulating test targets. 

  • Development of test criteria

    Determining the properties to be tested, such as sound pressure level, vibrations or resonance frequencies. Definition of threshold values and tolerance ranges based on specific requirements, empirical values or industry standards.

  • Conception of your test bench

    Designing the acoustic test bench with suitable measurement methods (sensor types) and appropriate measurement methodology. Ensuring compliance with the acoustically necessary boundary conditions for the test bench and its environment (neighboring machines and process timing).

Mechanical design of your acoustic test bench

We design your acoustic test bench , e.g. for the integration of the Anovis system from Siemens. We take into account conceptual requirements as well as the real conditions in the production hall.

Base frame

The base frame of the test stand should be stable and robust in order to minimize vibrations and oscillations during the test. Materials such as steel or aluminum are often used for the frame.

Decoupling

To reduce noise transmission and interference, decoupling elements (e.g. rubber buffers, vibration dampers) should be provided between the test stand and the environment as well as between individual test stand components.

Positioning the sensors

Sensors (e.g. microphones, acceleration sensors) should be positioned in such a way that they can optimally detect the sound signal or the vibrations of the component without being affected by interference or reflections.

Holding devices

A suitable holding device is required to securely and stably fix the device under test (DUT). The holding device should be designed in such a way that it does not interfere with the signal and enables reproducible positioning of the DUT.

Soundproof booth or shielding

To reduce ambient noise and improve measurement conditions, the test bench can be set up in a soundproof cabin or fitted with acoustic shielding. In most cases, however, we can design the system in such a way that vibrations are measured and there is no need for soundproofing measures at all.

Acoustic test stand commissioning

We support you in integrating the system into your production, commission the test bench and train your personnel in the use of hardware and software. 

Integration of the system

Autonomous use in the laboratory, semi-automated integration as a manual test station (programming of executables/routines) or fully automated integration (support with PLC integration).

Ensuring the ability to run

Commissioning of the system with test runs remotely and on site. Step-by-step increase in process complexity via single run, repetition runs and final test of runnability in series production. 

Documentation and training

Preparation of documentation of test criteria and procedures for the quality assurance guidelines and training of employees in the use of hardware and software.

Acoustic testing of components

Which properties can be tested? 

Generally speaking, the acoustic environment of a production hall (machine noise) is not a problem for the acoustic testing of components. As the vibration and acoustic properties are interlinked, they can be combined using suitable methods.

Acceleration sensors

Vibrations and oscillations: Detection of imbalances, bearing damage or mechanical defects

Structural dynamics: analysis of resonance frequencies, damping properties and vibration modes

Wear and condition monitoring: early detection of material fatigue or system wear

Laser sensors (e.g. laser Doppler vibrometer)

Non-contact vibrations and oscillations: Analysis without direct contact to the component, ideal for sensitive materials or surfaces

High-precision measurements: Fast, accurate and high-resolution detection of vibrations and movements

Structural analysis: investigation of sound radiation, vibration modes and material analysis

Microphone sensors

Sound pressure level and frequency spectrum: recording of operating noise, analysis of sound sources and identification of anomalies

Acoustic emissions: Monitoring of noises caused by cracks, leaks or material degradation

Performance testing of acoustic components: Testing of loudspeakers, microphones and other acoustic components

Does acoustic testing make sense for your component? 

Tell us about your application. I would be happy to advise you on whether acoustic testing is effective and efficient in your case. 

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Dr.-Ing.
Sören Keuchel


Anovis: Hardware and software for acoustic test benches

Novicos is sales partner for Anovis test benches

Anovis is an EoL test system from the Simcenter product portfolio, consisting of hardware and software. As a sales partner for Siemens measurement technology, we are the point of contact for the purchase of Anovis components. As a technical service provider for EoL test benches, we provide support with design and commissioning. 

More about the Anovis acoustic test bench

Anovis acoustic test bench system

First-hand EoL expertise

Novicos is a technical service provider for EoL test benches and sales partner for Siemens measurement technology

  • NVH expertise for test criteria

    We have been active as a measurement service provider for NVH projects for 20 years. We have built up a wealth of experience in the development of test criteria. 

  • Recognizing and eliminating acoustic disturbances

    We have tried and tested solutions for recognizing sources of interference and separating them despite frequency overlap. 

  • 24/7 support, worldwide

    Our team includes 5+ dedicated Anovis experts who support our customers in this area. This enables us to guarantee the level of support that an OEM supplier with a JIT supply contract requires. 

100% testing in series production

ZF success story

Novicos developed an EoL test bench for the automotive supplier ZF for automated and delay-free acoustic testing of assemblies in series production.

Read success story

What is your challenge?

Tell me about the challenges you face in the quality inspection of your product. I will be happy to advise you on solutions and procedures.

sk.jpg

Dr.-Ing.
Sören Keuchel

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Novicos GmbH

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