12Apr
07Apr
Electromagnetic Compatibility-when devices work smoothly Together!
Electromagnetic Compatibility-when devices work smoothly Together! Devices are like people, they work best when they're compatible. Electronic devices work best when they don't interfere with each other. Electronic devices can be interfered with in several ways. They can be "distracted" by RF interference emitted by nearby devices. This distraction is similar to a co-worker who is always talking. The background "noise" keeps work quality below its potential best. Devices that can be "distracted" are called "susceptible". The answer to susceptibility...
05Apr
RF/EMI Shielding-the Key to EMC!
RF/EMI Shielding-the Key to EMC! Electromagnetic Compatibility Standards must be met prior to marketing devices. The device must perform well in a shared electromagnetic environment. It must not disrupt the performance of other nearby devices. It must not be disrupted by its environmental coworkers. The "potential disruption" is caused by RF/EMI outside of acceptable standards. In the US, the FCC determines these standards. In Canada, Industry Canada determines the standards. Europe requires the "CE" mark that represents...
30Mar
What is Conductive Mesh-how is it used?
What is Conductive Mesh-how is it used? Conductive Mesh is a knitted metal plated fabric with pores. The fabric is Nylon 6, Nylon 6.6 or polyester. The pore size varies, pores can be big or small. If they are small, the mesh can be used for filtered ventilation. Conductive mesh vents are often used in the ventilation systems of our RF Shielded Testing Enclosures. Conductive meshes are useful in face masks to filter the air of particulate...
29Mar
Berry Amendment vs BAA-what’s the difference?
Berry Amendment vs BAA-what's the difference? The Berry Amendment was passed in 1941. The Berry Amendment applies only to the Department of Defense (DoD). It requires that DoD funds are spent on US manufactured items. This practice protects the US industrial market in times of war. Primarily, it covers tools, food, and textiles for use at home and abroad in military operations. The Berry Amendment is very specific in its coverage. The Berry Amendment requires 100% domestic content of covered...
24Mar
Wrapped Yarns-Three New Options!
Wrapped Yarns-Three New Options! Shieldex and Lederer GmbH are developing three new products. Three types of conductive wrapped yarns are under development. These products are: Wrapped Yarn dyed: Silver plated yarns cannot be dyed. Color can now be added by wrapping the dyed yarn with silver plated yarn. The silver plated yarn is not directly affected by the dyed yarn. This allows the plated yarn to maintain its electrical and thermal conductive properties. Wrapped Yarn Stretched: Using a very stretchable yarn...
22Mar
Supply Chain Woes- We’ve got the Goods!
Supply Chain Woes-We've got the Goods! The last two years have been crazy for businesses! Shutdowns due to COVID put us all behind production schedule! The suppliers of raw materials were also affected in similarly. Now we are able to work again. Good Employees are hard to come by, slowing production! The current problem is that the supply chain is broken! Many companies have no raw materials or parts to work with. Orders are currently being taken at many companies. ...
17Mar
Global Reach and Innovation-two Great Assets!
Global Reach and Innovation-two Great Assets! During these tough economic times, we have been very fortunate. The supply chain has broken and is difficult to repair. VTT and our European partner, Shieldex, have excellent global reach. Our two locations, Germany and the USA, make shipping easier. Both of our locations have large standing inventories in stock. We manufacture many of the products that we sell. We have been fortunate to find suppliers of raw goods. This has helped us to...
15Mar
Non-woven Metalized Fabrics-what are their uses?
Non-woven Metalized Fabrics-what are their uses? The concept of a non-woven metalized fabric is hard to grasp. They are not made by weaving or knitting. They consist of Nylon 6.6 fibers. These fibers are NOT converted to yarns. The fibers are pin bonded together in a three-dimensional matrix. This process yields a uniform fabric with dimensional stability, and high tear and tensile strength. The fabric can be plated with Silver, Copper, Nickel, and Tin. These varied metal platings yield different...
10Mar
