EMC/EMI Testing: What You Need To Know - PowerPoint PPT Presentation

About This Presentation
Title:

EMC/EMI Testing: What You Need To Know

Description:

EMC/EMI Testing: What You Need To Know – PowerPoint PPT presentation

Number of Views:8
Slides: 4
Provided by: astute_labs
Tags:

less

Transcript and Presenter's Notes

Title: EMC/EMI Testing: What You Need To Know


1
EMC/EMI Testing What You Need To Know
  • Emission testing is a crucial step in the design
    and manufacturing of electronic devices. Various
    regulatory bodies, including the FDA, FCC, and
    ISO, have set specific limits on the emission of
    certain types of radiation. Devices that meet
    these emission limits are allowed to enter the
    market. In this article, we will explain what EMI
    testing is, what it covers, and what you need to
    know before you carry out an EMI test.
  • What is EMC/EMI Testing?
  • When it comes to EMC/EMI testing, you need to be
    aware of the different types of tests that are
    available and the purpose of each. Here is a look
    at what each type of test does and when you
    might want to use them.
  • Environmental Tests
  • Environmental tests are conducted to determine
    whether or not emissions from electronic
    equipment cause harmful or potentially harmful
    effects to the environment. This can include
    checks for such things as volatile organic
    compounds (VOCs), lead and other heavy metals,
    and harmful radiation levels.
  • Radio Frequency Interference (RFI) Tests
  • RFIs are conducted in an effort to identify
    sources of electromagnetic interference that may
    be causing problems for electronic equipment.
    RFIs can identify such things as high-power
    transmission lines, microwave links, wired
    network hubs, and wireless access points. By
    identifying these sources, you can reduce the
    potential for interference and improve the
    performance of your electronic equipment.
  • Types of EMC/EMI Testing
  • Electromagnetic compatibility (EMC) testing is
    the process of determining whether electronic
    equipment and systems can operate together
    without causing interference or damage. EMC
    testing is required for any electronic device
    that will be used in a hazardous environment,
    such as an aircraft cockpit or medical equipment.

2
  • EMC testing can be performed using a variety of
    test methods, including direct measurement,
    simulation, and RF exposure. Direct measurement
    methods use physical devices to measure
    emissions or currents. Simulations are used to
    create conditions that mimic real-world
    conditions and allow for more accurate
    measurements. RF exposure tests use
    electromagnetic radiation to expose devices to
    potential interference sources.
  • EMC testing is important because it allows
    manufacturers to ensure that their products meet
    safety standards and comply with regulatory
    requirements. It also helps identify potential
    problems early so they can be fixed before they
    cause serious damage or harm to users or the
    environment
  • Environmental and Human Health Effects of EMC/EMI
    Testing
  • Environmental and human health effects of EMC/EMI
    testing are still being studied, but the
    potential for adverse effects is certainly there.
    According to IEEE Spectrum, The Environmental
    Protection Agency has classified electromagnetic
    radiation from power lines and other
    communications devices as a possible carcinogen.
    That said, there is no evidence yet that
    exposure to EMC/EMI testing has led to any
    serious health problems. However, as more
    studies are conducted it is likely that more
    serious health concerns will be revealed.
  • One potential environmental concern with EMC/EMI
    testing is the release of radiofrequency energy
    into the air. This energy can travel long
    distances and may affect people who are nearby
    when the test is taking place. In addition,
    EMC/EMI testing may cause electric fields that
    could potentially interfere with electronic
    equipment, including medical devices. These
    fields could also pose a risk to human health if
    they are strong enough to cause physical damage.
  • There is also a risk that EMC/EMI testing could
    contaminate water supplies near facilities where
    tests are performed. Radiofrequency energy can
    damage DNA and other sensitive molecules in
    water, which could lead to contamination of
    drinking water.
  • It's important to note that while these risks
    exist, there's currently no evidence that
    exposure to EMC/EMI testing has actually caused
    any health problems in people. However, it's
    important for anyone who may be concerned about
    their exposure to these tests to speak with
    their doctor or other healthcare

Regulatory Requirements for EMC/EMI
Testing There are a number of regulatory
requirements that must be met for EMC/EMI
testing. Below is a list of some of the most
common requirements
3
  • The electrical equipment must be evaluated using
    specific tests to ensure it is compliant with
    safety and performance standards.
  • The laboratory must be certified by an accredited
    organisation, such as the American National
    Standards Institute (ANSI).
  • The results of the EMC/EMI testing must be
    documented in a report.

Standards for EMC/EMI Testing There are
standards for EMC/EMI testing, and organizations
must adhere to them in order to qualify for
certain EMC/EMI certification programs. The most
important standard is the ANSI/ESD S20.20-2009
Standard for the Prevention of Interference with
Electromagnetic Compatibility (EMC). All
equipment that emits or potentially emits
electromagnetic radiation must meet this
standard. To be certified to comply with this
standard, an organization must have an EMC plan
that addresses the prevention of interference.
The plan should identify all sources of
emissions, determine which emissions are
unacceptable, and take appropriate measures to
reduce or eliminate those emissions. Additional
Standards ISO 177992011 establishes general
requirements for environmental management systems
(EMS) in electronic and information technology
(EIT) facilities. EMSs protect people, equipment
and data from accidental release of hazardous
materials and uncontrolled combustion fumes.
Organisations that operate EMSs must comply with
these requirements. The most important part of
ISO 17799 is the section on data protection. All
organisations that process or store personal
data must implement a data protection policy that
meets the requirements of ISO 270012005 or a
later version. Conclusion EMC/EMI testing is
an important part of ensuring the safety and
reliability of your network. By understanding
the basics of EMC/EMI testing, you can make sure
that your networks are running as smoothly as
possible. In this article, we have outlined some
key things to know about EMC/EMI testing and
what it entails. Hopefully, this will give you a
better understanding of why these tests are
necessary and help you get started with planning
your next test.
Write a Comment
User Comments (0)
About PowerShow.com