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Polycarbonate
used in food-contact and medical applications. Other special grades are used for blow-molding, weather and UV-resistance, glass-reinforcement, EMI, RFI, ESD. shielding, and structural-foam application& Polycarbonate is also available in extruded sheet and film. Polycarbonates are characterized
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Common-sense cabling
physical lengths. Variations in cable dielectric material necessitate use of network analyzers to trim cables for identical standing wave relationships. The semirigid cable on these N-style connectors provides the best EMI shielding of any coax. Supersmall MCX connectors handle much smaller cables
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Sealing Challenges For The Medical Industry
maintaining an effective seal. Shielding against EMI. Complying with global electromagnetic compatibility (EMC) regulations is a major challenge in developing new medical devices. Faster-running systems in smaller, lighter designs two trends in medical design are more likely to have EMI problems
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Enclosures
, seals (for fluids and radiation), and explosion-hazard factors. For example, steel cabinets are a must for shielding against EMI/RFI, and many food and beverage-processing plants mandate stainless-steel enclosures. Some installations require fiberglass composite or polycarbonate enclosures. Another
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Sound Deadening, Provides Moisture Barrier and Heat Shield with Environmental Resistance - FT 0816 (.pdf)
for. bonding to polyether-urethane foams. Heat and EMI. shielding, moisture and vapor barrier, insulation facing. Challenge. Ability to adhere to a wide variety of shapes and. surfaces. Substrates. Foams, painted and unpainted metal, some plastics. Conditions. Hand applied die cut parts, or machine
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Putting a Lid on Electromagnetic Interference - A Twisted/Shielded Tale (.pdf)
generate such electromagnetic interference (EMI), or noise--also. known as radio frequency interference (RFI). To a greater or lesser degree, so. do many other electrical devices. In homes, sources of EMI include dimmer. switches (which produce a tel tale buzz), attic fans, exercise equipment
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PSAs take hold
. In many cases, PSAs have become the preferred method for assembling certain parts of computers and cell phones, medical devices, drug-delivery systems, automobiles, machines, and equipment. In the electronics industry, for example, transfer films bond flexible circuits, EMI/RFI shielding, and other
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EMKA Swing Handles
typically only when sealing or EMI shielding is needed. For NEMA 12 and better, a multi-point system should be considered for enclosures. over 3 feet high (2' if basic foam gasket is used). It is usually expensive to add. latching points later to solve a problem so conservative design