A device’s EMC can be measured through compliance testing using dedicated test systems that consist of antennas, near field probes, and spectrum analyzers. The EMC of a device can be improved through good design, shielding, and EMI filtering. The ability to not generate additional EMI that affects the operation of other devices in its vicinity.The ability to work properly in the presence of electromagnetic radiation.Machines that use both high voltage and high frequencies, including motors and ignition systems.Įlectromagnetic compatibility of an electrical, electronic, or RF device has two facets:.Devices operating at high frequencies, like oscillators, computing devices, radios, radar, and sonar equipment.Power generating equipment and peripherals, such as generators, power supplies, voltage regulators, switches and relays, battery chargers, and high voltage electrical transmission lines.Here are some of the most common sources of EMI: Common manifestations of radiated EMI include static noise on AM/FM radio receivers and “snow” on TV monitors. Radiated EMI – The most common type of EMI, caused by radiating electromagnetic fields.Differential Mode EMI – A low-frequency EMI that flows in an opposite direction though adjacent wires.Common Mode EMI – A high-frequency EMI that flows in the same direction through one or more conductors.Conducted EMI – EMI that flows through wires and is caused by physical contact with the source of EMI.It may also lead to erratic or disrupted function of electrical, electronic, and RF systems. Electromagnetic interference often manifests as undesirable noise.
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