EMC testing helps manufacturers ensure that their products comply with these regulations, avoiding potential legal and financial penalties. Compliance with regulations: Many countries have regulations in place to ensure that electronic devices and systems meet minimum EMC requirements.Improved product performance: EMC testing helps identify any potential issues that could affect the performance of electronic devices and systems, allowing manufacturers to make necessary design modifications to improve performance and reliability.The benefits of conducting EMC testing include: With the largest global network of 23 EMC Testing labs, Intertek provides the capacity, proximity and engineering resources to streamline your EMC Compliance Testing process for any market you want to reach What is Electromagnetic Compatibility (EMC)?Įlectromagnetic Compatibility (EMC) is the ability of electrical equipment, devices and systems to function properly and be compatible within their electromagnetic environment, and show no signs of generating, emitting or receiving electromagnetic energy causing electromagnetic interference (EMI) in other devices within the surrounding area.Įlectromagnetic Compatibility Overview EMC Testing BenefitsĮMC (Electromagnetic Compatibility) testing is the process of evaluating the impact of electromagnetic interference on electronic devices and systems. This can considerably cut back on expensive facility time.EMC Testing | Electromagnetic Compatibility Above all, the system can make the measurements any number of times without the slightest deviation.Įngineers can carry out both electrostatic discharge and susceptibility tests on large ground stations or computers to detect bonding faults and ground loops. This provides an accurate and fully corrected measurement, calibrated on the spot at each frequency step. All these control and check functions are handled by a computerised system. This avoids the problems of manual operation where the operator has to control the frequency with one hand, the amplitude with the other, and, at the same time, check the modulation, the overload of the amplifiers, and so on. Susceptibility testing is also fully automated. A bus-controlled oscilloscope is used for this purpose. Time domain measurements are also an integrated part of the test activities. A printout is available of all values measured in numeric order together with the levels compared with the relevant specification. Tests are computer-controlled with online data reduction, narrow, and broadband identification and corrections for probes factor. The system, which has an overall dynamic range of 160 decibels, includes active sensors for measurements of the magnetic and electric fields and of the surface current.Įmission and susceptibility testing SMOS in MaxwellĪll emission tests in the frequency and time domain are fully automated. The facility is particularly well adapted to carry out electrostatic discharge tests on spacecraft and to verify the effects of the discharges on the test specimen. Engineers separately plot test data, collected through antennae, current, and voltage probes, with a clear identification between narrow-band signals and broadband coherent and incoherent noise. A dedicated data acquisition system controls each step of a test programme thus providing maximum security to the test specimen. The test sequences are fully automated and are conducted in both the frequency and the time domains. These include the use of fibre optics for communications and for susceptibility monitoring. The design of the facility, based on 30 years of experience, incorporates a number of unique characteristics that ensure that tests are carried out in the most effective and economical way possible. The Electromagnetic Compatibility (EMC) test instruments are operated from one, and the unit or system being tested from the other. There are two more Faraday cages attached to the facility. Ceiling and floor absorbers are specially coated to prevent particle release so as to preserve the class 100 000 cleanliness level. The wall opposite the main door is lined with air-cooled high-power resistive absorbers capable of dissipating up to 3 Watts per square centimetre. The floor is lined with ferrite absorbers and mobile resistive absorbers. The walls and ceiling are lined with an absorbent, anechoic material designed to attenuate the reflected electromagnetic energy. The ESTEC Maxwell Test Chamber consists of a shielded enclosure, commonly called a Faraday cage, with continuously conducting metal walls, floors, and ceilings.
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