Chinese and English abbreviations of EMC terminology.

Introduction：

This article mainly introduces the EMC electromagnetic compatibility professional vocabulary in English and Chinese abbreviations, including the industry's test standards mentioned in some of the terminology vocabulary, all using the English abbreviation - Chinese abbreviation: plus terminology description of the format to show each kind of vocabulary.

AF-Antenna Factor

The ratio of the received field strength to the voltage appearing at the receiving antenna terminals, or the ratio of the transmitted field strength to the voltage applied to the transmitting antenna terminals at a specified distance. The antenna coefficient is a function of position and frequency.

AM - Amplitude Modulation

A technique for placing information on a sinusoidal "carrier" signal by varying the carrier amplitude.

ALSE - Absorbent Lined Shielded Environment

An EMC test environment consisting of a shielded room with wall and ceiling materials that absorb electromagnetic radiation.

ANSI - American National Standards Institute

ANSI is an organization that organizes and sponsors various standards, including the EMC radiation testing standard ANSI C63.4.

APLAC - Asia-Pacific Laboratory Accreditation Cooperation

APLAC is a cooperative of accreditation bodies in the Asia-Pacific region that accredit laboratories, inspection bodies and Reference Standards producers.

BCI-High Current Injection

An EMC test in which common mode currents are induced in power and communication cables of a device under test.

CDM-Tolling Equipment Model

A model of an electrostatic discharge power supply. In its most basic form it consists of a charged capacitor, a resistor and a switch in series. The charged device model is an alternative to the human body model (HBM), which is similar but has a higher resistance.

CE - Conducted Emissions

Energy conducted in wires and cables by electrical circuits or devices.

CENELEC

In English, the name of the committee is "European Committee for Electrotechnical Standardization" CENELEC's mission is to prepare voluntary electrotechnical standards (including EMC standards) to assist in the development of the Single European Market/European Economic Area (Euromarket/EEA) for electrical and electronic goods and services, to remove barriers to trade, to create new markets and to reduce compliance costs. compliance costs.

CI-Conducted Immunity

A term used to describe EMC tests that directly couple energy to cables and wires. These tests are used to determine the ability of a device or circuit to withstand or suppress electrical noise.CI and CS describe similar tests, but CI is typically used in commercial EMC testing.

CISPR-Committee of the International Special Committee on Radio Interference

CISPR is an international organization dedicated to the development of standards for the detection, measurement and comparison of electromagnetic interference in electronic equipment.

CS-conductance sensitivity

A term used to describe EMC tests that directly couple energy to cables and wires. These tests are used to determine the ability of a device or circuit to withstand or suppress electrical noise.CS and CI describe similar tests, but CS is typically used for military and aerospace testing.

CSA -- Canadian Standards Association

The Canadian Standards Association is a not-for-profit membership association serving business, industry, government and consumers in Canada and the global marketplace.

continuous wave

A sine waveform with constant amplitude and frequency.

DPI - Direct Power Injection

A conducted immunity test in which a continuous wave signal is injected directly onto a cable or component pin (usually through a capacitor). The strength of the signal is determined by a forward power measurement.

DUT - Device Under Test EUT

Equipment being evaluated by EMC testing (see also EUT).

EEE ^–electromagnetic environmental influence

The impact of the electromagnetic environment on the operational capabilities of military forces, equipment, systems and platforms. It covers all electromagnetic disciplines, including electromagnetic compatibility/interference; electromagnetic vulnerability electromagnetic pulse electronic protection, electromagnetic radiation hazards to personnel, ordnance, and volatile materials; and the effects of natural phenomena.

EMC - Electromagnetic Compatibility

The ability of an electronic device or system to function properly in the intended electromagnetic environment.

EMD - Electromagnetic Interference

Any electromagnetic phenomenon that may interfere with the normal functioning of electronic equipment.

EMI - Electromagnetic Interference

Disruption of electronic equipment or systems due to electromagnetic interactions.

EMP-Electromagnetic Pulse

Strong electromagnetic transients, such as those produced by lightning or nuclear explosions.

ERP - Effective radiant power

The product of the transmitter power output and the antenna gain, taking into account any losses in the transmission line, connectors, couplers, etc.

ESA - Electrostatic Society of America

The ESA is a non-profit professional association is dedicated to developing and improving the understanding of electrostatics.

ESD - Electrostatic Discharge

Sudden surges in current are usually caused by electrical sparks or dielectric breakdown and are characterized by rise times of less than one nanosecond and total pulse widths of about microseconds.

EUT or DUT - Device Under Test

Equipment being evaluated by EMC testing (see also DUT).

FCC - Federal Communications Commission

The FCC is the agency that regulates unintentional electromagnetic radiation from commercial products sold in the United States.

FM -- Frequency Modulation

A technique for placing information on a sinusoidal "carrier" signal by varying the carrier frequency.

HBM-Human Body Model

A model of an electrostatic discharge power supply. In its most basic form it consists of a charging capacitor, a resistor and a switch in series. The manikin is an alternative to the charging device model (CDM), which is similar but usually of lower resistance.

HEMP-High Altitude Electromagnetic Pulse

A strong electromagnetic transient field (sometimes referred to as a NEMP or Nuclear Electromagnetic Pulse) generated by a nuclear device released into the atmosphere.

IBIS-Input/Output Buffer Specification

IBIS is a standard method for specifying the parameters of semiconductor device input and output pins for electrical modeling purposes.

IEC - International Electrotechnical Commission

The IEC is the international organization that develops and publishes international standards for all electrical, electronic and related technologies (including many EMC standards).

IEEE - Institute of Electrical and Electronics Engineers

IEEE is the world's leading professional association for the advancement of technology.The IEEE name was originally an acronym for the Institute of Electrical and Electronics Engineers. Today, the organization's focus has expanded into so many related fields that it is referred to by the letters IEEE (pronounced Eye-triple-E). The IEEE EMC Society is the world's largest professional society in the field of electromagnetic compatibility.

IEMI-Intentional Electromagnetic Interference

Intentionally generated electromagnetic interference (e.g., rendering an enemy's electronic systems inoperable or preventing the proper functioning of equipment in the absence of legitimate control mechanisms).

iNARTE - International Society for Radio, Telecommunications and Electromagnetics

iNARTE is a global non-profit professional telecommunications association that certifies qualified engineers and technicians in the fields of telecommunications, electromagnetic compatibility/interference (EMC/EMI), product safety (PS), electrostatic discharge control (ESD) and wireless system installation.

ISO - International Organization for Standardization

ISO is a network of national standards bodies from 157 countries/regions, each with one member, and has a central secretariat in Geneva, Switzerland, which coordinates the system.

ISM - Industrial, Scientific and Medical Equipment

A class of special-purpose electronic equipment that does not normally have EMC requirements imposed on equipment that may be used in the home or office.

ITE -- Information Technology Equipment

Many EMC standards refer to a class of electronic equipment that covers a wide range of devices including business machines, telecommunication equipment and multimedia equipment.

JEDEC-Joint Electronic Device Engineering Consortium

The JEDEC Solid State Technology Association is the trade association and standardization body representing the semiconductor electronics industry in the United States.

LISN-Line Impedance Stabilization Network

A passive two-port network that is located between the power supply and power input of the device under test. It transfers power to the device while providing a known high frequency impedance. The test equipment used to measure the voltage on the power line is connected directly to the LISN.

NEMP - Nuclear Electromagnetic Pulse

A strong electromagnetic transient field (often referred to as a HEMP or High Altitude Electromagnetic Pulse) generated by a nuclear device released into the atmosphere.

OATS -- Open Area Test Site

An EMC test environment with no reflective objects except the ground plane.

PLT-Power Line Transient

A sudden surge of voltage on the power input.

PWM - Pulse Width Modulation

A common method of transmitting an analog control signal, wherein the signal voltage is in an on or off state. The width of the transmit pulse conveys the amplitude of the analog signal.

RES - Radiation Electromagnetic Sensitivity

Electronic equipment is subjected to electromagnetic compatibility testing with strong radiated electromagnetic fields. These are usually modulated or unmodulated continuous wave (CW) fields. The term is often used synonymously with the term radiated immunity (RI).

RFI - Radio Frequency Interference

The interruption of an electronic device or system due to electromagnetic radiation at radio frequencies (usually a few kilohertz to several kilohertz). This term was more common many years ago, but has largely been replaced by the more generic expression electromagnetic interference or EMI.

RE - Radiation Emission

Energy generated by circuits or equipment that radiates directly from the equipment's circuits, chassis and/or cables.

RF - Radio Frequency

Frequencies at which electromagnetic radiation of energy can be used for communication. Radio frequencies are designated as very low: 3 kHz to 30 kHz, low: 30 to 300 kHz, medium: 300 to 3,000 kHz, high: 3 to 30 MHz, very high: 30 to 300 MHz, very high: 300 to 3,000 MHz, ultra-high: 3 to 30 GHz, and very high: 30 to 300 GHz.

RI-Radiated Immunity

A term used to describe EMC tests in which energy is coupled to a product by means of radiation (or field coupling). These tests are used to determine the ability of a device or circuit to withstand or suppress electrical noise.RI and RS describe similar tests, but RI is typically used in commercial EMC testing.

RS - Radiation sensitivity

A term used to describe EMC tests in which energy is coupled to a product by means of radiation (or field coupling). These tests are used to determine the ability of a device or circuit to withstand or suppress electrical noise.RS and RI describe similar tests, but RS is typically used for military and aerospace testing.

SerDes-Serializer/Deserializer

The transceiver converts parallel digital data to serial digital data and vice versa for high-speed data communication.

SSO-Synchronous Switching Output Noise

SSO noise (also known as SSN) is a voltage fluctuation that occurs on the power bus of an electronic device due to rapid changes in the current drawn by the device. These power bus fluctuations may also occur on signal outputs that are referenced to that power bus.

TEM-Transverse Electromagnetic

An electromagnetic plane wave in which the electric and magnetic fields are perpendicular to each other everywhere and both fields are perpendicular to the direction of propagation.The TEM unit is commonly used to generate TEM waves for radiation immunization (RI) testing.

VCCI - Vehicle Control Committee on Interference

In Japan, unintentional electromagnetic radiation control is carried out voluntarily under the supervision of the Voluntary Control Council for Interference (VCCI).

VSWR-Voltage Standing Wave Ratio

A measure of how well a load matches the impedance of a transmission line, determined by dividing the voltage at the peak of the standing wave by the voltage at the zero point in the standing wave.

XTALK-Crosstalk

A measure of electromagnetic coupling from one circuit to another.

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