Also related to Electronic Engineering - Essay Example

If the average mission time for the vehicle to go submerged and returned to surface is 1 day and 12 hours, compute the reliability of this control system for the mission. (ii) Compare the reliability of a single oxygen control system and that of the “duplicate”ystem above given the same individual component specifications and operating conditions, inclusive of mission time. EMI or Electromagnetic interference is a naturally occurring phenomenon when the electromagnetic field of one particle or device interrupts, hinders or corrupts the electromagnetic field of another particle or device by coming into proximity with it.

While EMC or Electromagnetic Compatibility is the capability of a system to work in its own electromagnetic environment without creating any kind of electromagnetic disturbances to any other system in that environment. Broadband Interference is interference which has a broad spectral energy distribution and exhibits a wide frequency range. It is normally measured in "decibels above one microvolt (or microampere) per Megahertz"  e.g., dBuV/MHz or dBuA/MHz. On the other hand, Narrowband Interference has its principal spectral range confined to a specific frequency or frequencies.

  This type of interference is usually produced by an oscillator circuit which contains energy only at the frequency of oscillation and harmonics of that frequency.  It is normally measured in "decibels above one microvolt (or microampere)", e.g., dBuV or dBuA.  The first sources of EMI are the Ground Loop Systems in the electronic equipments like the audio / video systems. This is a common problem when connecting multiple audio-visual system components together, there is an interruption of audio signals which cause a humming noise in the audio signals and produces interference bars to picture.

At times, this can eventually damage the equipment. The second source of