• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Electromagnet Interference.

Extracts from this document...

Introduction

Report: Electromagnet Interference In this report I will look into the basis of electromagnet interferences! What is it may you think? Well never the matter because further on in this report, there would be more in-depth explanation on this topic! There will be annotated pictures which illustrate what is happening in some parts of this report so you the reader can understand it much better! What is Electromagnetic Interference (EMI)? First of all what is electromagnet might you ask? Well to put it in simple terms it is basically a live current going through an electrical wire that produces what we call a magnetic field! The term "electromagnetic" comes from the relationship between electricity and magnetism. The two forces always accompany each another. Where you have magnetism you have electricity and vice versa. Either cannot work nor exist without the other! Another occasion is when you are next to your television set and you mobile phone goes off! You should notice a noise that interferes with the sound which is what we call electromagnet interference. What Causes EMI? There are three types of causes EMI. They are inherent, natural and man made! I will now talk through how each one of these work! ...read more.

Middle

This means that space with magnetic fields can be turned into corridors, storerooms, or lounge areas so there is a minimum chance EMI can take place! Obviously doing this sort of planning takes a lot of time and expertise; you can't just move things around and think you have done it all! In some cases, individual devices can emit fields and can interfere with other equipment so asking students/colleagues to take care when using such devices. FMS Jitter Box Another way in stopping EMI is by using the device which is called FMS Jitter Box. This box goes around the monitor of a PC and protects the monitor by attracting and absorbing the external ELF magnetic fields! The interference is prevented and the image remains stable like normal. I will give another scenario so that it is easier for you to understand! There are common (elevated magnetic fields include printers, monitors, scanners, copiers and power lines) and hidden sources (magnetic fields include electrical cables, power transformers or electric doors) can cause the computer screen monitor to jump and pictures colours going in waves and jitter! As you can see from the diagram on the left, the magnetic emissions are going through the monitor which would cause the problems I've mentioned previously! ...read more.

Conclusion

Infra red systems can be safely used at the same time with the most sensitive electronic equipment without any adverse effect! Advantages of using Infrared I have shortened out some advantages for using infrared as a way of communicating: * No potential health risks. * Short range predictable area of coverage, allows total security and the segregation of systems by distance. * It is unaffected by other electromagnet radiation in the spectrum up to and including several GHz. * Has little or no electromagnetic radiation below several GHz. * Requires no licence requirements. * Very clear communications. Disadvantages of using Infra-Red * Not being able to cover far distances as radio waves does * The signals cannot pass through walls or ceilings Conclusion After reading this report, you may have come to the conclusion that EMI affects us in everyday life whether you're at an airport, petrol station forecourt or even at home! Some may even not know it is happening but we know it is happening all day and everyday somewhere on Earth. As technology advances, we may have more EMI to deal with, but what goes with bad has to come good! Maybe a new theory or invention could come out within the distance future which could put an end to EMI? Name: Lan Cun Nim Student Number: 031155108 Systems & Signals (EE1FSS) ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Fields & Forces section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Fields & Forces essays

  1. Peer reviewed

    Investigating the forces acting on a trolley on a ramp

    5 star(s)

    Sin-1 0.214 = 10.836� It is acceptable to say quote that the value of 374mm lies within � 0.5mm due to the use of set squares to ensure that the measurements were taken at 90� to the plane (the desk).

  2. Peer reviewed

    Energy and its uses

    3 star(s)

    to the mass being lifted. 2. Falling mass drives dynamo via line shaft to light lamp: Gravitational potential energy (GPE) is stored in the weight mass, when released this was converted to kinetic energy for the weight mass with some energy loss due to friction, heat and sound.

  1. New Technological Advances in Wing Design

    The fan sucks the air from the top of the wing through 10 million holes in the titanium panel keeping the air flow over the wing constant, and increasing the lift-to-drag ratio by 10%.

  2. Investigating the relationship of projectile range and projectile motion using a ski jump.

    it will have an affect on the initial velocity when leaving the ramp. Higher velocity will result in a bigger horizontal component and therefore uncertainties would be more or less �1mm. The total uncertainty would be �2mm. The plastic ramp also creates a problem.

  1. Maglev Trains And The Technology Behind Them (magnetism)

    By using them we can find the size of the magnet that is needed to levitate two people at 20mm. First to find the force we multiply the weight of two people at 70N each by the gravitational constant 9.8 and then multiply this figure by a safety factor of two we get 2744N.

  2. Electromagnetic Radiation.

    * Ultra Violet Rays (? = 380 nm - 60 nm) These rays come from very hot bodies such as the sun or from electrical discharges through gases. * The Visible Spectrum (? = 400 nm (violet) - 700 nm (red))

  1. Einstein's theory of relativity.

    If we examine the spectral lines of an element on our earth with the spectral lines given off by the same element on the sun or on a star, the spectral lines of the element on the sun or star should be very slightly shifted toward the red end of

  2. Rules, Regulations and Scoring Systems of boxing.

    are drawn at right angles to the goal line, 5.5 m from the inside of each goalpost. These lines extend into the field of play for a distance of 5.5 m and are joined by a line drawn parallel with the goal line The Penalty Area A penalty area is

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work