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magnetic deflection [1 record]

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Record 1 2013-10-02

English

Subject field(s)
  • Vacuum Tubes (Electronics)
  • Electromagnetism
  • Television (Radioelectricity)
DEF

The moving of the electron beam by means of a magnetic field produced by a coil around the neck of the cathode-ray tube.

CONT

Magnetic deflection of the electron beam can be used instead of electrostatic deflection. A magnetic deflecting field is established in the tube just past the electron gun to react with the magnetic field associated with the electron-beam current, producing a force that deflects the electrons at right angles to both the beam-current axis and the deflection field.

OBS

Linear motion is produced by a sawtooth current through the coil.

French

Domaine(s)
  • Tubes et lampes (Électronique)
  • Électromagnétisme
  • Télévision (Radioélectricité)
CONT

Application : déviation magnétique d'un faisceau d'électrons [...] Ce mode de déflexion est utilisé dans les tubes de télévision [...] car il permet d'obtenir des déviations angulaires beaucoup plus grandes que celles fournies par une déviation électrostatique [...]

Spanish

Campo(s) temático(s)
  • Tubos de vacío (Electrónica)
  • Electromagnetismo
  • Televisión (Radioelectricidad)
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