Electromagnetic interference fabrics

In general, fiber-optic sensors provide numerous advantages over conventional sensors, which include immunity to electromagnetic interference, small and compact size, remote sensing, ability to be multiplexed, and the ability to be embedded into various solid and flexible structures, including textiles and fabrics [15]. 

Numerous other types of electrically conductive polymer composites are commercially available but are beyond the scope of this chapter. These materials are used in such applications as conductive inks [1], thermoplastic molded monolithic objects for electrostatic dissipation (ESD) [2] and electromagnetic interference (EMI) shielding applications [3], and a wide variety of other applications, including heating elements, switches, transducers, and batteries [2]. Similarly, the fabrication of conductive polymer materials via metal vapor deposition or electrodeposition onto polymer surfaces will not be discussed here. 

P. Saini, V. Choudhary, N. Vijayan, R. K. Kotnala, Improved Electromagnetic Interference Shielding Response of Poly(Aniline)-Coated Fabrics Containing Dielectric and Magnetic Nanoparticles. J. Phys. Chem. C 2012, 116, 13403-13412. 

FIGURE 8.94 Electromagnetic interference (EMI) SE, absorbances, and reflectances of polyester fabric/PPy composites with various speciflc volume resistivities. (From Kim, M.S., et al., Synth. Met., 126, 233, 2002. With permission.)... 

The problem with such ultra-micro-reference electrode was that the potential can be strongly influenced by electromagnetic interferences. Therefore, a shielded wire between the electrode and the potentiometer is demanded. The main lack is that the electrodes remain functional for only 7 days after fabrication and are applicable only for disposable use. The leakage of the inner electrolyte solution, the dry out of... 

Radome Also called radiation dome. It is a cover for a microwave antenna used to protect the antenna from the environment on the ground, underwater, and in the air (aircraft nose cone, etc.). The dome is basically transparent to electromagnetic radiation and structurally strong. Different materials have been used such as wood, rubber-coated air-supported fabric, etc. The most popular is the use of glass fiber-TS polyester RPs. The shape of the dome, that is usually spherical, is designed not to interfere with the radiation. 

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