What Is EMC Testing?

Electromagnetic Compatibility testing, also known as EMC testing, has become important to design engineers all over the world. It relates to the Electromagnetic Compatibility Directive, an element of CE Marking.

EMC testing is a critical component of designing and manufacturing electrical products and equipment to be sold in the European Union. EMC testing measures the product’s ability to function satisfactorily in its electromagnetic environment without introducing electromagnetic disturbances to anything in that environment.

What Type Of EMC Testing Is Conducted?

EMC testing includes two main types of testing:

  • Emissions Testing measures the amount of electrical noise generated in the form of radiated and conducted emissions.
  • Immunity Testing measures how a device reacts to natural electrical disturbances in a variety of forms.

What Are The Types Of EMC Testing Being Conducted?

  • Radiated Emissions Testing is the most common EMC test used around the world and it involves measuring the electromagnetic field strength of the emissions that are intentionally generated by your product.
  • Conducted Emissions Testing involves measuring the emissions conducted from your product onto the power supply cord and is typically performed on devices that connect to an AC power supply. 
  • Electrostatic Discharge Testing involves providing various simulated electrostatic impacts that your product might experience during transit or during operation.
  • Radiated Immunity Testing measures the susceptibility of your product to ensure that it can withstand the emissions of nearby devices.
  • Conducted Immunity is a test used to determine a product’s overall immunity by simulating the normal voltage and current environment of external power and signal cables by injecting a common mode disturbance into your cabling using a transducer.
  • Electrical Fast Transients is a simulated switching of inductive disturbances which the equipment under testing can experience from sources such as motors, relays, fluorescent ballasts, etc.
  • Surge is energy caused by overvoltage switching or nearby indirect lightning strikes. A typical product can experience a few power surges per year. Surge testing involves simulating low frequency power surges.
  • Voltage Dips & Interruptions is a test that involves simulating voltage dips and short burnouts on AC or DC power supply. It is done to ensure your product still functions as intended while subjected to power supply fluctuations. 

Why is EMC Testing Important?

EMC Testing is a component of CE Marking and is a requirement for electrical products and equipment to be sold in the European Union and many other markets around the world. Having EMC Testing done on your electrical products will provide them with the needed EMC Certification, allowing them to be sold freely in these markets and will remove the stress of additional international regulations.

Why Choose Technology International for EMC Testing?

Technology International is an EU Notified Body that provides quick, effective, and cost-efficient EMC Certifications. Our engineers have a thorough understanding of the EMC Directive and can conduct testing at our facility or yours. We provide you with peace of mind knowing that experts are guiding you through every step of the EMC Certification process.

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