EUROLAB is the leading independent automotive EMC testing laboratory in the industry, providing test and consultancy services to automobile, truck, SUV and off-road vehicle manufacturers. Our capabilities include environmental stress and EMC testing for automotive equipment and components, as well as all the tools in our extensive, well-equipped indoor RF test chambers.
Unsurprisingly, the automotive industry has many electromagnetic compatibility (EMC) requirements that must meet. Two of these require CISPR and ISO standards (organizations that develop and maintain standards for use at the international level), that electronic systems are immune to emissions from other systems as well as not emitting excessive electromagnetic interference (EMI) or noise.
CISPR 25 is a standard that provides limits to assess the level of emissions emitted from a vehicle and its components (i.e. a radio). The main purpose of the CISPR 25 test is to ensure that the component in question does not interfere with other systems in the vehicle.
Regarding the actual test, CISPR 25 requires the electromagnetic noise level in the test room to be at least 6dB lower than the lowest measured levels. For example, in some cases, CISPR 25 requires levels as low as 18 dB (µV / m), so an environmental level of less than 12 dB (µV / m) is required. (For reference, this is the field strength of a typical AM radio station one kilometer from the antenna.)
Today, the only way to achieve such a test environment is to use a special room designed to isolate the test from external, unwanted interference. Moreover, since the chamber is usually finite in size, the test environment should also be protected from reflected signals inside the chamber. For this reason, the walls of the test chamber should be covered with a material that does not reflect electromagnetic (EM) waves.
Another test standard is the ISO 11452-4 Bulk Current Injection (BCI) test group, which is used to verify whether a component is adversely affected by narrow-band electromagnetic fields. The test is done by stimulating interference signals directly to the wiring harnesses with a current probe.
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EUROLABreporting and certification activities, United Accreditation Foundation (UAF), Turkish Accreditation Agency (TÜRKAK) ve Enterprise Accreditation Foundation (EAF) based on the accreditation provided by the accreditation body. The Enterprise Accreditation Foundation (EAF) accreditation body is also a signatory of the United Nations (UN GLOBAL COMPACT) organization.
