EMI

Personal Shielding

Personal Shielding-RF/EMI Shielding!

Personal Shielding-RF/EMI Shielding!  We tend to think of RF/EMI Shielding in the electronics industry.  RF/EMI can affect the function of electronic devices.  Interference can reduce the operational efficiency of electronic devices.  Human beings are also electronic devices.  Many body systems are electronic in nature, potentially disrupted by RF/EMI.  We live in a world with ever-increasing RF/EMI.  Some of this RF/EMI is from nature.  Natural RF/EMI includes lightning, solar magnetic storms, the auroras, and the Earth's magnetic field.  The natural RF/EMI...
EMC

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...
Shielding Fabric

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 compliance.  Every country...
Conductive Mesh Tulle

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 matter.   Conductive mesh...
RFI Interference

Shielding lowers Interference-Devices work Better!

Shielding lowers Interference-Devices work Better.  We all know what interference is like in an office situation.  While concentrating on an important job, someone disrupts your concentration.  The interference comes from a coworker who is working with you.  Frustration sets in, you can't get back "into the zone".   You know you aren't performing your best work.  The same thing can happen to devices in a shared electrical environment.  All devices are trying to work but can't function well.   In the workplace...
EMI/RFI Spell Trouble

EMI/RFI spell Trouble, VTT offers Solutions!

EMI/RFI spell Trouble, VTT offers Solutions!   An electronic device can't be marketed until it is compliant with applicable EMC Standards.  Each device has to pass EMC Final Compliance Testing before it can be marketed.  Testing is rigorous, device development is crucial in preparation for it.  Pre-Compliance testing, starting upon product development is the best way to prepare for the Final Compliance Testing.  Pre-Compliance testing is best done "early and often" in your own facility.  This development method saves time and...

Shielding, More Important than Ever!

Shielding, more important than ever!  The number of electronic devices continues to increase.  Our dependence on these devices increases as well!  We actually NEED these devices for life's "basic tasks"!  It is CRITICAL that these important devices work optimally.  The more electronics simultaneously in use at any time, the higher the probability of EMI/RFI  becomes. We want our electronic devices smaller all the time!  This means more electronic components in tighter confines.   You see where I'm going with this, right?  We're...
Your Own Test Lab

EMC Testing “Early and Often”, makes great Sense in Product Development!

EMC Testing "Early and Often" makes great sense in product development!  In today's environment of complex electronic devices, EMC is paramount!   All the components must work smoothly together to make a great product!  Too much RF noise can decrease the function of a device.   EVERY device emits RF/EMI noise.  There are EMC standards in every industry, automotive, aerospace, and the military.  A device must live up to the appropriate EMC standards in order to be used. EMC Testing "Early and Often"...
Shielded Clothing Protective

Shielded Clothing, Comfortable and Protective!

Shielded Clothing, Comfortable and Protective!  As winter arrives, comfortable clothing is important!  Shop VTT is selling a new line of loungewear.  This loungewear has a good feel against the skin, both warm and soft.   The presence of silver in the fabric is very important.  Silver is the most thermally conductive element.  This clothing will eliminate "hot spots" and "cold spots".  Silver distributes the natural heat of the body over the whole garment.  This electrically conductive fabric increases circulation in the...
Electromagnetic Hypersensitivity

Electromagnetic Hypersensitivity-help is hard to find, but it’s Available!

Electromagnetic Hypersensitivity-help is hard to find, but it's available!  For years, some individuals have reported a wide range of non-specific health problems that they attribute to low-level exposure to electromagnetic fields, (EMF).  The symptoms include:  headaches, body pain, lethargy, tinnitus (ringing in the ears), nausea, burning sensation, heart arrhythmia, and anxiety.  The World Health Organization (WHO) said that "no adverse health effects have been established as being caused by mobile phone use".  The WHO, along with the International Agency for...