VDE EMC Laboratory

Prüfstand für E-Mobilty

Hier können Prüfung von AC- und DC-Ladestationen für Elektrofahrzeuge mit Batteriesimulatoren und Lasten bis zu Leistungen von 125 kW durchgeführt werden.

EMC shielding room

This is the large cabin (110 sqm) with ground level access and waterproof floor lining.

Test bench for measuring the interference power

Here, the disturbance power is determined on devices connected to the mains via a line.

Door

Come in! The door size is 4 x 4 m.

Narrow-band analysis

Another measurement method used in the VDE laboratory is narrow-band analysis. In this analysis using the FFT (Fast Fourier Transform) method, high frequency resolutions (up to 1 Hz resolution) are generated from the device under investigation. Discrete excitation frequencies, harmonics and sidebands can be identified and displayed during the examination. This method is also used by manufacturers in the development phase to identify interfering frequencies and eliminate them at an early stage by modifying the design.

Test bench for heat pumps

Here performance measurements are carried out according to EN 14511 and EN 14825. The test samples are brine-water and water-water heat pumps, which, if they prove a minimum performance, receive a state subsidy. We also carry out sound measurements on heat pumps. For this reason, this test facility is set up directly in front of the absorber hall. Furthermore, we carry out sound measurements on heat pumps with the help of the test facility. Providing the source and sink for heat pumps up to 50 kW heating capacity.

Incoming currents measurements

Measuring station for incoming currents up to DC 150 kHz and symmetrical currents.

Test bench

For measuring the interference power.

Acoustics services

Our range of services includes a wide variety of tests in the areas of acoustics, noise emission and vibration. With a room size of 12 m (length) x 10 m (width) x 4 m (height), we have a so-called "low-reflection half-room of accuracy class 1" in accordance with the ISO 3745 standard. Due to a microphone distance of up to 4 m, we can perform "indoor" measurements for the "outdoor" guideline "utilities".

Test system

In order to provide you with high-quality results, our EMC test center is equipped with modern test and measurement systems. Fast measurements are guaranteed by the use of time domain measurement techniques (TDEMI, ESR). With our large absorber hall and a 10 m measurement distance, also suitable for floor-standing equipment, state-of-the-art facilities are available even for large devices and systems.

ESD

Measuring station for electrostatic discharge (ESD) measurements up to 30 KV.

Absorption hall

In order to provide you with high-quality results, our EMC test center is equipped with modern test and measurement systems. Fast measurements are guaranteed by the use of time domain measurement techniques (TDEMI, ESR). With our large absorber hall and a 10 m measurement distance, also suitable for floor-standing equipment, state-of-the-art facilities are available even for large devices and systems.

Information about radio testing

Electrotechnical products must not only function properly and thus be safe and fail-safe. They must not influence any other equipment, even during operation, and must not cause any impermissible mains feedback. For radio equipment, the effective and efficient use of the radio spectrum must be ensured. The VDE Institute carries out EMC and radio tests on the basis of international guidelines, standards and laws.

Test bench for mobile interference

Measuring station for interference voltage

Absorption hall

In our low-reflection semi-free field room, also called absorber hall, we perform tests in the field of acoustics and noise emission. These are noise spectrum analysis, structure-borne sound measurements, sound pressure levels, and sound intensity for a variety of equipment and products.

Dimensions

In our absorber hall, with a size of 23 m x 16 m x 10 m, even large test objects or installations find their place with us.

Low-reflection semi-free field room

In our absorber hall – a low-reflection semi-free field room – we perform tests in the field of acoustics and noise emission. Testing includes noise spectrum analysis, structure-borne sound measurements, sound pressure levels, and sound intensity for a variety of equipment and products.

Power supply

In order to meet the needs of our customers from all over the world, a wide variety of power supplies are available in the test rooms. 125 A/phase at 50 Hz and 100 A/phase at any power supply 50 Hz, 60 Hz, special voltage shapes are possible, flicker/harmonics up to 100 A/phase can be measured on 3 phases simultaneously.

Control room

From here, all processes inside the absorber chamber can be monitored. Customers can watch and listen to the test without influencing it.

Full absorber hall

When integrating radio modules into machines, household appliances, installation switches or lights, precise specifications must be observed. For example, the radiated characteristics of the radio modules installed in a new electromagnetic environment must be verified again, because test verification at module or component level alone is not sufficient. For this type of equipment, the full absorber hall (FAR) offers the best conditions, since it has, among other things, two permanently installed antenna masts. With our full absorber hall (FAR), we can carry out tests efficiently and flexibly and provide you with consistent support already during the development process. With a time-domain measuring device with a very high bandwidth (> 600 MHz) as well as the full-absorber technology, the radiated interference emission of both floor-standing and table-top devices can be measured. And this with a very high measurement speed in the frequency range from 30 MHz to 18 GHz. Measurements up to 40 (67) GHz are also possible with the system. With the facility, the VDE Institute can in particular cover the testing and measurement requirements of the Radio Equipment Directive (RED, 2014/53/EU) for manufacturers.

Control area of the full absorber hall for radio systems

Very fast and efficient measurement due to 625 MHz time domain measurement technique Spectral analyzer up to 67 GHz can be performed here.

EMC control room SAC

Here, electric field strength measurements (up to a range of 18 GHz), magnetic field strength measurements and immunity measurements take place. Our "decoupled" control room facilitates a problem-free monitoring of the test objects. Here, our customers always have the opportunity to be present during the tests.

Impulsive disturbances

Measuring station for impulsive disturbances such as surge (8 kV) and burst (7 kV) with coupling networks, loadable up to 100 A/phase.

Sound source localization

Of particular interest to product developers is sound source localization using the intensity probe. This measurement method is a two-microphone technique that can be used to determine the sound intensity or sound power at radiating surfaces. It is used, among other things, for source location. With the help of a raster scan of the examined surface, a sound mapping can be created. Depending on the intensity, a color is assigned to each individual measurement point. This method is used in development to visualize weak points on equipment in terms of noise radiation.

Exhaust extraction system

Many test objects are operated with a combustion engine. In order to be able to test e.g. compressors for professional use, these devices are connected to this exhaust system.

Noise quality and psychoacoustics

The noise quality of a product, ranging from household appliances to tools and cars, is determined not only by the level but also by the way the noise is emitted. This can determine whether a customer finds a product attractive or repulsive. The right "sound" can lead to increased sales. Sound quality can also help a device stand out from the crowd. When testing psychoacoustic parameters, purely physical parameters such as level, frequency, bandwidth, duration or degree of modulation are mapped onto parameters suitable for hearing. In this process, several physical quantities, which can be assessed independently of other sensations, act on a psychoacoustic quantity. Sensory quantities that are used in psychoacoustics as the basis for a hearing-related sound analysis and evaluation include loudness, sharpness, roughness, tonality, impulsiveness or vibration strength. The VDE Institute offers comparative tests in which devices from different manufacturers are compared and evaluated with the psychoacoustic quantities.

Electrostatic discharge

Measuring station for electrostatic discharge ESD measurements up to 30 KV.

Absorber hall

This is where we perform radiated emission and immunity measurements of electrical equipment. Radiated emission is possible up to 18 GHz. The variable energy supply can be individually adapted to any requirement. In addition, all necessary media such as water and compressed air are available on the turntable. The power supply ranges from 230/400V, 125 A, 50 Hz DC to 1000 Hz 108 A/phase 3ph. In addition, AC 400 V/200 A 3ph and a DC battery simulator 1000 V/200 A (100 kW) are available to supply the equipment. The turntable has a diameter of 6 m.

Small acoustic test chamber

Here we perform tests in the field of acoustics and noise emission. These are, among others, analyses of the noise spectrum, sound pressure level and sound intensity on classical household appliances, such as washing machines, dryers, refrigerators or gas appliances. Dimensions of the room are 4.5 m (length) x 6.5 m (width) x 6 m (height). The test chamber has accuracy class 2 according to ISO 3744.

Measurement of interference voltage

Test bench for measuring the interference voltage (9 kHz-30 MHz) Available network simulations 3 phases 200A/phase measurements by TDEMI.

Head torso simulator

Considerable hearing damage is repeatedly caused by exposure to excessive volume with headphones. The EN 50332 standard defines a measurement method that also specifies limits for a maximum sound level for headphones used in conjunction with portable audio devices. In some countries, compliance with these limits is mandatory. Consequently, conformity with EN 50332 is of great importance to many manufacturers. For this measurement procedure, a head-torso simulator is used, which is state-of-the-art in terms of technology and requirements. The measurements are fully automated via software.

Surge and burst measurements

Measuring station for impulsive disturbances such as surge (8 kV and burst (7 kV)) With coupling networks, the DUT can be loaded up to 100 A/phase.