CRT Full Form | What Does CRT Stand For?

CRT: Cathode Ray Tube

CRT Full Form

CRT full form stands for Cathode Ray Tube. A cathode ray tube (CRT) is a vacuum tube with one or more electron guns, one of which is attached to the beam phosphorescent shown on the screen.

On a television set, it is commonly called a picture tube. CRT has also been used as a memory device, in which case the purpose of the screen is not visible to the viewer.

Brief History

The first cathode ray tube to use a hot cathode was developed by John Bertrand Johnson and Harry Weiner Weinhart of Western Electric and became a commercial product in 1922.

The introduction of hot cathodes has allowed low acceleration anode voltage and high electron beam currents, as the anode now accelerates only the electrons emitted by the hot cathode, and now attracts the emission of electrons from the cold cathode.

Brief Explanation

CRT works by electrically heating the tungsten coil, resulting in a cathode heating at the back of the CRT, which emits electrons that are modified and focused by electrodes. The voltage should not be too high.

Electron deflection is driven by coils or plates, and an anode accelerates them towards a phosphor-coated screen, which is exposed to electrons and produces light. Images can represent electric waves (oscilloscopes), images (television sets, computer monitors), radar targets, or other phenomena.

Types

  • Picture tubes
  • Display tubes

What Is The Full Form Of CRT?

CRT full form stands for Cathode Ray Tube. It is a vacuum tube with one or more electron guns, one of which is attached to the beam phosphorescent shown on the screen. CRT has also been used as a memory device, in which case the purpose of the screen is not visible to the viewer.

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