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Engineering Electromagnetic Compatibility Essay Example

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Engineering Electromagnetic Compatibility

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Engineering Electromagnetic Compatibility. The limits can be traced back to the CISR which is a French acronym that is translated to mean International Special Committee on Radio Interference. CISPR is one of the committees of the International Electromagnetic Commission (IEC), which is an international body mandated with the task of ensuring that standards are upheld by countries in order to facilitate cross-border and overseas trade. The CISPR 22 is a standard that was published by CISPR to describe how information technology systems and other relevant digital devices ought to be designed. This is perhaps the most reused standard with most countries adopting the standard not only in the region of Europe but also in the entire world (Fassbinder, 2002)
Elementary Coupling
A simple system can be used to describe the principles that will be important in the design of the control room.

The simple system will have three parts, the source, the cause of the interference, and some means of a coupling.
The source may be anything from an electrical wire to antennas of a wireless Local Area Network. Coupling will be realized by the current should common conductors from different circuits share the electromagnetic field. The drain of EM disturbance could be any type of apparatus or even any part of the electrical system. It is important to develop a matrix that has all the possible coupling paths, sources as well as the likely disturbed objects. The matrix will identify four types of EMI that should be of concern in our system namely impedance, inductive, capacitive, and radiative coupling (Kodali, 1996). A manufacturing factory is bound to have high electronic noise thanks to inductive coupling followed by capacitive coupling and impedance coupling. It is also expected that the heightened use of wireless media in the future will significantly cause an increase in the EMI from this source (Kodali, 1996).
When different circuits use common coupling impedances and common lines, it will result in the galvanic coupling. Engineering Electromagnetic Compatibility.

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References

Electronics project design. 2011.EMC Testing and Standards in Transient Immunity Testing, RF Immunity. [online]. Available at: < http://www.electronics-project- design.com/EMCTesting.html> [accessed Jan. 8, 2012

Fassbinder, S., 2002. Disturbances of the Power Supply Network by Active and Passive Components (in German), VDE, Verlag

Keenan K.,2003 Digital design for interference specifications. Vienna, Va: Keenan Corp. Keiser, B., 2007. Principles of EMC, New Jersey: Artech House, 1987

Kodali, V., 1996. Engineering Electromagnetic Compatibility, Washington: IEEE Press

Learn EMC. 2011. Common impedence cpupling. [online] Availble at: <http://www.learnemc.com/tutorials/Common_Impedance_Coupling/conducted_c oupling.html> [Accessed Jan. 8, 2012]

Mardiguian, M. 1992.Controlling radiated emissions by design. New York : Van Nostrand Reinhold.

Nelson, W. Ed., 2001. Interference handbook. New York: Radio Publications. 

Ott H., 2008. Noise Reduction Techniques in Electronic Systems, New York: A Wiley

Paul, C. 1992. Introduction to Electromagnetic Compatibility, New York: John Wiley

Rabindra N., G., 1996. Interference mitigation: theory and application New York: IEEE Press.

Sue, M.K. 2011.Radio frequency interference at the geostationary orbit. NASA. Jet Propulsion Laboratory. [Online] accessed on I5th December 2011.

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