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Zippertubing (Japan),Ltd.取り扱いEMC製品GLOSSARY


Absorbing Clamp Method

The absorbing clamp method of measurement is a standard method of measuring the interference power levels on cables connected to electronic devices using groups of ferrite rings. Without an antenna, simple emission measurements can be made from 30 MHz to 300 MHz.

CE Marking

The CE marking (also known as CE mark) is a mandatory conformity mark on many products placed on the single market in the European Economic Area (EEA) Related to the EMC and LVD directives. The CE marking certifies that a product has met EU consumer safety, health or environmental requirements.

Clock Signal

A pulse string that propagates a binary signal to coordinate actions of digital circuits. A crystal oscillator can be used to create this electrical signal with a very precise frequency.

Conducted Emission

Conducted Emission (CE) The potential EMI that is directly coupled through conduction from one device to another. It may be generated inside equipment and transferred through power lines, I/O lines, or control leads. Governing bodies impose limits conduction interference levels.

Conducted Immunity Test

Test of a devices susceptibility to the potential EMI that is directly coupled through conduction from one device to another. Typical test are the burst immunity test, the surge immunity test, and the radiated immunity test.

Conductive Coating

"Painted-on" coating applied to the inside machines or devices with enclosures made of plastic or other nonconductive material in order to reduce electromagnetic emissions. These special paints have may have silver, copper, nickel or other metals mixed into the filler and binder to create a low-resistivity film.

Conductive Surface Treatment

A surface treatment for material like plastic, through which electromagnetic waves can pass, to shield and add electrical conductivity. Application of metallic spray, conductive paint, non-electrolytic plating, vacuum metallizing, and ion plating etc. are common methods of treatment. However, materials that have had conductive surface treatments done to them pose recyclability issues, so materials such as moulded magnesium which do not require conductive surface treatment are also sometimes used.

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