- What do you mean by EMC? …
- What is LUN Masking and why we need it? …
- Explain briefly about the EMC environment? …
- What is the LUN or logical unit number? …
- How will you calculate Max IOPS an HBA port can generate to buy any LUN? …
- What is Wmn Zoning? …
- What is the difference between Hard and soft zoning?
EMI, EMC Introduction part-1, EMI Testing, EMC Testing Standards,EMI EMC testing interview questions
A: I did have to evaluate a medical product with a very small PC board. For emissions, I’d test like any other board. However, for identifying emission sources, I’d use a very small loop probe. Beehive Electronics, Aaronia, Langer and Rhode & Schwarz all make near field probes with very small loops that will yield good resolution. You can also make your own by fashioning a small loop at the end of a piece of small-size coaxial cable. You’ll likely require a broadband preamplifier to boost the very low signals from the smaller probes. For radiated immunity, I feed a small RF field into one of these small loops and run the field around the PC board, looking for areas of sensitivity.
Q: How do you validate the E-Field power level when using test antennas in a test bench area?
A: Generally, you’re correct. However, I’ve seen cases for radiated (and especially ESD and other impulse type signals) that will reset the microprocessor IC or cause glitching in digital signals.
A: I’m not sure whether the question is framed around designing a single PC board or whether you’re talking about an entire system. Assuming we’re speaking about a PC board design, the first question you need to ask yourself is, “why is it necessary to have multiple ground returns?” If the answer is, “well, we have digital, analog and, say, motor controller circuitry and we need to keep them isolated from each other”. Well, that’s fine. In that case, I recommend using a single signal/power return plane in your product for all signal technologies. The trick is to keep noisy motor controller or digital signal/clock currents from penetrating into sensitive analog circuitry. You can do this by segmenting your PC board into separate areas and ensuring that no signal, data, address, or clock signals cross over the analog section and that the potentially noisy motor control signals avoid crossing over either the digital or analog areas. Dr. Todd Hubing has a lot more to say about proper PC board design on his web site: http://www.cvel.clemson.edu/emc/index.html.
Q: I am confused about the purpose of the pigtail. What is the purpose or the point and why is it useful?
Do you want to excel in computer field? Are you familiar with computer embedded systems? Wanted fetching and growth in your job? Then move on to wisdom jobs online portal and explore your career. EMC is an electromagnetic compatibility, the use of components in electronic system that do not electrically interfere with each other. EMC storage refers to various storage products, systems which are essential for virtualized and cloud computing environment. Candidates who are willing to join in EMC jobs have a wide scope in EMC design jobs, Embedded Developer jobs, embedded engineer jobs, embedded software developer jobs, EMC compliance testing jobs, EMC symmetric jobs and so on. So, grab the opportunity by looking at the EMC interview questions and answers framed below.
FAQ
What is the EMI EMC standards?
What is the difference between EMI and EMC?
More specifically, EMC—electromagnetic compatibility—measures how well electrical devices can function while being hit with EMI (released energy from another electrical device). While EMI is the problem, EMC sees how well that problem can be handled.
What is EMI EMC testing?
What does an EMI EMC engineer do?
