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Electromagnetic interference (EMI) from unwanted electromagnetic fields can interrupt, obstruct, or degrade the effective performance of electronic devices. Eikosa€™s NanoshieldA® coating has demonstrated the ability to significantly reduce broad spectrum electromagnetic interference. We have tested our materials from 50 MHz to 40 GHz and found uniform and strong shielding across all wavelengths. Science, Technology and Medicine open access publisher.Publish, read and share novel research. Microwave Absorption and EMI Shielding Behavior of Nanocomposites Based on Intrinsically Conducting Polymers, Graphene and Carbon NanotubesParveen Saini1 and Manju Arora1[1] National Physical Laboratory, New Delhi, , India1. Electromagnetic compatibility (EMC) is defined as the assurance of an electronics device to perform according to the rated specification in its electromagnetic environment. This research report categorizes the electromagnetic compatibility shielding and test equipment market based on types, applications, and geographies; it also covers the market size forecast of the market.
The electromagnetic compatibility shielding and test equipment market has been segmented on the basis of types into electromagnetic compatibility shielding and electromagnetic compatibility test equipment.
The electromagnetic compatibility shielding market has been further split based on application into six subsegments such as consumer electronics, telecom & IT, automotive, healthcare, aerospace & defense, and others. The market has been split into four regions based on geography: North America, Europe, Asia-Pacific, and RoW.
7 Electromagnetic Compatibility (EMC) Shielding and Test Equipment Market, By Type (Page No. 8 Electromagnetic Compatibility (EMC) Shielding and Test Equipment Market, By Application (Page No. 9 Electromagnetic Compatibility (EMC) Shielding and Test Equipment Market, By Geography (Page No. Electromagnetic compatibility (EMC) is the ability of an electrical device or circuit to function within its electromagnetic environment without causing electromagnetic interference (EMI) to the other devices in the system, and it must be electromagnetically susceptible or immune so that it could protect itself against external electromagnetic waves. This report describes the drivers, restraints, opportunities, and challenges pertaining to the electromagnetic compatibility shielding and test equipment market.
The coatings utilise metals such as aluminium, copper and zinc impregnated within the blend.
It may also act as a conductive base for applications where it is necessary to impart the highest degree of conductivity to a surface. As well, the silver is non-magnetic, offering a low relative permeability that provides reasonable skin depths, which makes it suitable for microwave transmissions applications.
An economical, acrylic paint that is used to create conductive, static free surfaces with excellent characteristics. The carbon in the coat resists rubbing off to the touch and the cured coat is able to withstand large temperature changes without cracking. RFI (Radio Frequency Interference) and EMI (Electromagnetic Interference) is essentially noise.
If you are having a conversation in person, you can move to less noisy areas but this is harder for telecommunications since EM waves travel fast and easily in many different directions. These reasons are the basis for both governmental, industrial, and commercial shielding requirements. It has been widely known for years that metallized window films, because of their metal content, can cause EMI (electromagnetic interference), and in the process provide a substantial measure of electromagnetic shielding. If one aims to block the emission of radio signals from a building through glass, the use of certain window films can be an effective way to both maintain outward visibility and provide solar control benefits but also greatly reduce the likelihood of successful electronic eavesdropping. Traditional EMI shielding is achieved with vacuum deposited metals that are susceptible to corrosion and delamination. Because NanoshieldA® is a printable and conformal coating, any surface can be coated without the need for a vacuum chamber. Conductivity of some conjugated polymers in comparison to typical metals, semiconductors or insulators. Variation of conductivity (?dc) of PANI-MWCNT nanofiller loaded polystyrene solution blends.

Frequency and dopant concentration dependence of total shielding effectiveness (SET) value of samples prepared by doping of emeraldine base (EB) with different concentrations of acrylic acid (AA) viz. Thickness dependence of total shielding efficiency (SET) of various ‘‘crosslinked’’ polyaniline (XPANI-ES) samples. Frequency dependence of losses due to reflection (SER) and absorption (SEA) for MWCNT loaded PANI nanocomposites having different loadings of MWCNT relative to aniline monomer viz. Variation of (a) SER as function of log10(?T?') and (b) SEA as function of(?T?'?)12 for PANI-MWCNT filled polystyrene composites 4.
IntroductionElectromagnetic interference (EMI) is an undesirable and uncontrolled off-shoot of explosive growth of electronics and widespread use of transient power sources. The market is expected to be driven by firm EMC regulation across the world and the increasing usage of electronics system and device in the automotive sector. It also provides a detailed analysis of the current market situation and the market till 2020.
Furthermore, electromagnetic compatibility shielding type has been segmented into EMI shielding tapes, Conductive coatings and paints, metal shielding, and others. Electromagnetic compatibility test equipment market has been segmented into third-party laboratories, in-house laboratories, and government labs.
Sources of EMI can be natural, which include lightning, or it can be manmade, either intentional such as radios, TVs, and cell phones’ interference or unintentional such as interference generated from electric poles and consumer electronic devices.
The report covers the electromagnetic compatibility (EMC) shielding and test equipment market which has been segmented on the basis of product, application, and geography. Furthermore, it analyzes the current market scenario and forecasts the market till 2020, including a market segmentation based on types, applications, and geographies.
They are used on non-conducting composite casing materials to shield sensitive electronic devices from radio frequency electromagnetic interference.
Consists of a tough, durable acrylic base pigmented with a high purity silver coated copper.
Radio frequency (RF) interference (or signal disruption) can be either a boon or a bane, depending on one's special needs and purposes. As a product component in a carefully planned shielding project, though, these films will certainly prove to be of profound value.
By using low density carbon nanotubes instead of metals, NanoshieldA® can offer significant weight savings over traditional EMI shielding.
InvisiconA® coatings have a shielding effectiveness of greater 20 dB while maintaining transparency in the visible and near infrared regions. Inset: comparison of reflection (?) and absorption (?) shielding efficiency as a function of absolute value of complex dielectric constant. Increasing operating frequency and usage of a nonlinear device has significant influence on the global electromagnetic compatibility shielding and test equipment market.
Automotive, consumer electronics, and telecom & IT are the fast-growing segments of the electromagnetic compatibility shielding market. The report also analyzes the supply-side and demand-side factors, market dynamics, and the value chain of the electromagnetic compatibility shielding and test equipment market by considering the key stakeholders from vendors to end users.
Electromagnetic compatibility test equipment type has been segmented into EMI test receivers, signal generators, amplifiers, spectrum analyzers, ESD generators, and other equipment and accessories. The Asia-Pacific market includes China, Japan, and rest of Asia-Pacific, while RoW has been divided into the Middle East & Africa and South America. Increasing numbers of electronic devices and their interaction signifies that suitable electromagnetic compatibility (EMC) is more crucial today than ever before. Furthermore, it comprises the analysis of the market dynamics during the forecast period, Porter’s five forces analysis, and the current competitive scenario, along with the market rank analysis of the key players.
Different electromagnetic compatibility (EMC) shielding types include EMI Shielding tapes, conductive coatings & paints, metal shielding, and others. Now it is possible to incorporate various dielectric or magnetic fillers within conducting polymer matrices to form multifunctional nanocomposites. The electromagnetic emission limits for different electronic and electrical products is regulated by the regulatory authorities such as Federal Communication Commission (FCC) in the U.S.

The Asia-Pacific market accounted for the largest market share, followed by North America in 2014. This report profiles the major players which are in the electromagnetic compatibility shielding and test equipment market. Various test equipment such as EMI test receiver, signal generator, amplifier, and ESD simulator are used to perform different immunity and emission tests. The report also includes the detailed profiles of the major players in the electromagnetic compatibility (EMC) shielding and test equipment market, along with their growth strategies. Among these, the market for the EMI shielding tapes segment is expected to grow at the highest growth rate during the forecast period. The first section of this chapter gives a brief overview of fundamentals of EMI shielding & microwave absorption, theoretical aspects of shielding, governing equations, various techniques for measurement of shielding effectiveness and different strategies for controlling EMI.
The growth of the Asian-Pacific market is attributed due to the growth of auto-electronics and rollouts of advanced telecom infrastructure such 4G-LTE.
It also comprises the competitive landscape of major players, including the key growth strategies and market rank analysis of the same. The electromagnetic compatibility test equipment market was valued at USD 1.38 billion in 2014.
Asia-Pacific held the largest market share of the electromagnetic compatibility (EMC) shielding market, followed by North America and Europe.
In the next section, a comprehensive account of potential materials for handling of EMI are described with special reference to nanocomposites based on intrinsically conducting polymer matrix filled with conducting [e.g.
Various test equipment are employed to perform EMC testing, and the EMC testing services are provided by third-party laboratories and government labs. Third-party laboratories, in-house laboratories, and the government labs are the key users of the electromagnetic compatibility test equipment.
The mutual interference among electronic gadgets, business machines, process equipments, measuring instruments and appliances lead to disturbance or complete breakdown of normal performance of appliances. The EM disturbances across communication channels, automation, and process control may lead to loss of time, energy, resources and also adversely affect human health. Therefore, some shielding mechanism must be provided to ensure undisturbed functioning of devices even in the presence of external electromagnetic (EM) noises. The designing a EMI shielding with a certain level of attenuation, meeting a set of physical criteria, maintaining economics and regulating the involved shielding mechanism is not a straight forward task and involves complex interplay of intrinsic properties (?, and ?) of shield material and logical selection of extrinsic parameters. Therefore, to touch the theoretically predicted shielding performance of a materials and to satisfy stringent design criteria, elementary knowledge of shielding theory, set of governing theoretical equations, important design parameters and relevant measurement technique becomes a prime prerequisite.
Shielding definitions and phenomenonEMI shield is essentially a barrier to regulate the transmission of the electromagnetic EM wave across its bulk.
In power electronics, term shield usually refers to an enclosure that completely encloses an electronic product or a portion of that product and prevents the EM emission from an outside source to deteriorate its electronic performance.Conversely, it may also be used to prevent an external susceptible (electronic items or living organisms) from internal emissions of an instrument’s electronic circuitry. Shielding is the process by which a certain level of attenuation is extended using a strategically designed EM shield. Theoretical shielding effectivenessBefore starting the shielding analysis, it is necessary to understand the various electromagnetic terminologies (Ott, 2009). Shielding theory This section presents the shielding basics based on the transmission line theory (Schelkunoff, 1943) and the plane wave shielding theory (Schulz et al,1988). Assume a uniform plane wave characteristic by E and H that vary within a plane only with x direction as showed in Fig. For dielectric material, the conductivity is extremely small (????) and the intrinsic impedance of Eq.

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