Degaussing

Degaussing

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Description

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Degaussing is the process of decreasing or eliminating an unwanted magnetic field. It is named after Carl Friedrich Gauss, an early researcher in the field of magnetism. Due to magnetic hysteresis it is generally not possible to reduce a magnetic field completely to zero, so degaussing typically induces a very small "known" field referred to as bias. The term was first used by Cmdr Charles F. Goodeve, RCNVR, during World War II while trying to counter the German magnetic mines that were playing havoc with the British fleet. The mines detected the increase in magnetic field when the steel in a ship concentrated the Earth's magnetic field over it. Admiralty scientists, including Goodeve, developed a number of systems to induce a small "N-pole up" field into the ship to offset this effect, meaning that the net field was the same as background. Since the Germans used the gauss as the unit of the strength of the magnetic field in their mines' triggers, Goodeve referred to the various processes to counter the mines as degaussing. The term became a common word.show more

Product details

  • Paperback | 84 pages
  • 152 x 229 x 5mm | 136g
  • Anim Publishing
  • United States
  • English
  • 6136524023
  • 9786136524023