Posts Tagged ‘American Made EMI Shielding Gaskets’


Protecting Advanced Law Enforcement Equipment

Posted on: August 30th, 2017 | Posted in: EMI Shielding Gaskets

Today’s law enforcement agencies make use of a variety of high-tech equipment on a day-to-day basis. In addition to the well-known equipment officers carry, they also make use of electrical devices such as body cameras, breathalyzers, communications equipment, emergency respirators, and thermal imaging cameras, among many others.

 

In critical law enforcement scenarios, this electrical equipment must meet two main requirements. First, it must be rugged and safe for use in all types of weather conditions and challenging situational environments. Second, it needs to be protected from potential disturbances, such as electromagnetic interference (EMI) and radio frequency interference (RFI), to ensure proper functioning at all times.

 

Understanding EMI

The electromagnetic spectrum — the collective term for the range and scope of frequencies of electromagnetic radiation and their associated wavelengths — ranges from gamma radiation, which has the shortest photon wavelengths, to radio waves, which have the longest wavelengths, with visible and infrared light in the middle. EMI occurs when any of these waves interfere with the functioning of a piece of equipment; RFI is also classified as a type of EMI, wherein only waves within the radio wave frequencies cause the interference.

 

EMI can be caused by a number of sources, both natural and manmade. Natural sources include fluctuations in the earth’s natural magnetic field, lightning, and solar magnetic storms; manmade sources include interference from computer circuitry, arc welders, and certain types of electric motors. On a larger scale, transportation infrastructure — like the high-voltage contact switching and third rails required on many subways and railways — can also generate EMI.

 

For law enforcement workers, EMI can have serious, even life-threatening effects. For instance, it can garble radio communications, which can be disastrous if an officer is radioing for backup. EMI can also cause infrared camera malfunctioning, which can hamper tracking efforts, as well as body cam interference, which can result in fuzzy or distorted footage.

 

EMI Shielding Solutions From Vanguard

With over 40 years of experience designing, engineering, and manufacturing elastomeric products, Vanguard Products Corp. is proud to specialize in EMI shielding solutions, helping to ensure optimal performance of law enforcement equipment — and optimal safety for law enforcement workers.

 

Made of the highest-quality silicone and fluorosilicone, our EMI shielding gaskets come standard in a wide range of shapes and sizes, and can also be custom designed for special applications and requirements.

 

Many of our EMI shielding gaskets meet stringent MIL-DTL-83528 military specifications. Vanguard is a registered manufacturer with the United States Department of State, Office of Defense Trade Controls Compliance, Compliance and Registration Division, in accordance with the Arms Export Control Act (AECA) and the International Traffic in Arms Regulations (ITAR) Part 122, so you can rest assured that all our EMI shielding gaskets will perform reliably.

 

To learn more about EMI shielding gaskets , our material options, quality assurance processes, and custom design capabilities, contact the team today.

Exploring the Benefits of Nickel Free EMI/RFI Shielding Gaskets

EMI Shielding Gaskets

Nickel Free EMI Shielding Gaskets

In the competitive world of EMI/RFI shielding gaskets, many companies are touting various nickel-containing gasket materials claiming that they have improved galvanic compatibility with aluminum at a lower cost. However, these material combinations including nickel and graphite alloys, and nickel and aluminum alloys suffer from poor conductive performance. And beyond that challenge, a major concern is the uncertainty surrounding the safety of heavy exposure to nickel products.

The European Union is constantly issuing recommendations on the amount of nickel that can safely be exposed to skin. According to the Nickel Producers Environmental Research Association (NiPERA) fact sheet on Nickel and Human Health, “Nickel is one of the most common anthropogenic causes of allergic contact dermatitis (ACD).”

The fact sheet goes on to state that individuals who have prolonged exposure to nickel become more sensitive to it.

“A nickel sensitized individual, when re-exposed to nickel ions on the skin in sufficient amounts, may have an allergic response within a matter of hours. This is termed the elicitation phase, which often occurs at a lower concentration of nickel ions than required for inducing sensitization in the first place. The elicitation of nickel ACD usually occurs at the site of exposure but can occur in skin remote from the site of contact with nickel where previous nickel sensitization reactions have occurred.”

Because of these risks, it may be beneficial for companies to select industrial products that are nickel free to prevent unnecessary exposure and discomfort among employees. At Vanguard Products, the majority of our materials are nickel free, and our Ultra-Vanishield Dual Elastomer EMI/RFI Shielding Gaskets offer a competitive cost alternative to nickel-containing products. Our microbridge approach with silver and aluminum alloys can even surpass the galvanic performance of other products. And because our EMI shielding gaskets are made in the USA, all materials adhere to current safety and quality standards.

To learn more about EMI/RFI shielding gaskets and their many industrial applications, please feel free to visit our website. You can also browse our online catalog for additional product details and information.