Automotive EMC Test Chambers

All vehicles and their on-board equipment need to comply with international EMC standards regarding radiated emissions and immunity. Since time-to-market is such an important factor, having a EMC facility at your disposal will decrease development lead times.

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In-house EMC testing for Automotive component suppliers

Comtest supplies automotive test chambers according to the CISPR25 guidelines specifically for component testing. Its main purpose is to perform measurements of radio frequency emission or radiated immunity for vehicle on board equipment. If your company frequently tests the electromagnetic compatibility (EMC) of vehicle components, owning a specially made controlled test environment will greatly enhance the quality of your research or product. If you want to know more about EMC measurement possibilities in our CISPR25 chambers, please contact us via +31 71 541 75 31.

Automotive electromagnetic emissions and immunity standards

The international standards that govern the acceptable levels of electromagnetic compatibility in the automotive industry are developed by Comité International Spécial des Perturbations Radioélectriques (CISPR), Society of Automotive Engineering (SAE) and International Organisation for Standardization (ISO). The SAE standards are used mainly in North America, but these are often submitted to CISPR and ISO to function as international standards. Because most vehicles in today’s marketplace are sold internationally, corporate standards often match the ones used by governments around the world.

Key features of our CISPR25 chambers

Comtest CISPR25 chambers are semi anechoic chambers, tailored to perform EMC measurement using a testing workbench. The combination of the pan-type 2mm galvanized panel system and the polystyrene hybrid absorbers on the walls and ceiling eliminates unwanted electrical noise and complies with international emission standards for automotive testing. To achieve high shielding effectiveness requirements for EMC testing environments, Comtest developed various RF shielded doors with parallel closing system. Several features are:

  • Noise floor level as per CISPR25 requirements
  • Grounded EUT test table as per CISPR25 ed.4.0 design guidelines
  • Noiseless lights to meet the stringent requirements of CISPR25 noise floor level

Applicable standards

All vehicles and their on-board equipment need to comply with international standards regarding radiated emissions and immunity. This requires EMC chambers that have been designed to test the following standards:

Emissions Immunity
CISPR12 / EN55012 ISO11452-2
CISPR25 SAE J1131 part 21

Typical performance of a Comtest component test chamber have a RF absorber return loss of 6dB minimum between 70MHz and 6GHz. Part of the chamber solution is a CISPR25 ed.4.0 compliant test table. Additionally, Comtest is able to supply custom CISPR chambers if your research requires a solution that complies with specific EMC protocols belonging to individual car manufacturers.

Benefits of owning a CISPR25 chamber

Testing radiated emissions and immunity of vehicle components in your own EMC chamber saves time and money:

  • Time saved –  transport to and from third party facilities is no longer necessary
  • More accurate testing – we make sure your chamber matches your exact requirements, increasing the accuracy of your research
  • Faster development –  retest after each incremental change without delay
  • Less risk of damage or leaks – you no longer have to worry about damage during transport or exposure of company secrets
  • Lower costs – save on outsourcing as you operate your own EMC chamber

Aiding your research

At Comtest, our number one priority is supplying a high-performance test chamber that aids your testing applications. We understand that an electromagnetic compatibility test chamber represents both a large investment and an important asset that needs to function exactly as you expect it to be in order to fulfill its purpose: accelerating the development of your products. How do we achieve this? By starting with thorough customer inquiry, by designing and constructing your chamber exactly according to your specifications and by delivering the project on budget and on time.

If an vehicle EMC test chamber is an important asset that’s essential to your research and product development, you need a dependable supplier. With more than 3 decades of experience in EMC solutions, Comtest is a partner you can rely on.

Contact us

Do you want additional information about our automotive chamber solutions, get in touch with our technical consultants. You can reach us by phone on +31 71 541 75 31.