CATHODE RAY HOW TO
CATHODE RAY GENERATOR

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CATHODE RAY HOW TO

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Power supply − It produces both high and low voltages.

Horizontal Amplifier − It amplifies the sawtooth signal and then connects it to the horizontal deflection plates of CRT.

CATHODE RAY GENERATOR

Time base Generator − It produces a sawtooth signal for horizontal deflection of the electron beam.

Trigger Circuit − It produces a triggering signal for synchronizing both horizontal and vertical deflections of the electron beam.

Delay Line – It provides a certain signal delay that is applied to vertical deflection plates of CRT.

The image on CRT display is created by firing.

Vertical Amplifier – It amplifies the input signal for display on the CRT screen. CRT is a technology used in traditional computer monitors and televisions.

Cathode Ray Tube – Through this mechanism, electrons are emitted and controlled to form the desired signal image on the fluorescent screen.

CRO System (Image credit: It consists of: Now that we have learnt the basics of how a CRT works, let’s move onto learning about a CRO.Īs mentioned, a CRO is a device that is used for measuring and displaying different forms of electrical signals. These provide an electric field that acts on the electron beam, rendering them a vertical and horizontal motion.Īfter passing through this final stage, the electron beam strikes the fluorescent screen to give a glow.ĬRTs generally find applications in forming television screens. The beam then moves towards a set of horizontal and vertical deflection plates. Note here that both pre-accelerating and accelerating anodes are connected to a common positive potential of 1500 volts.Īll these components collectively form the electron gun.

Accelerating anode – Its job is to again accelerate the newly aligned electron beam.

Focusing Anode – It helps align the incoming electron beam.

Pre-accelerating anode – Provides acceleration to the anode before entering the Focusing Anode. A cathode ray is a beam of electrons in a vacuum tube traveling from the negatively charged electrode (cathode) at one end to the positively charged electrode ( anode) at the other, across a voltage difference between the electrodes.

The entire structure is made from nickel.

Grid – It is kept at a negative potential and helps control the intensity of the electron beam moving towards the anode.

In order to achieve this, a layer of barium oxide is coated on one end of the cathode.

Cathode – On being sufficiently heated, electrons are emitted from the cathode.

Heater – This part is responsible for heating the cathode.

Cathode Ray Tube (Image credit: It consists of several parts: A CRT is a vacuum tube that acts as the main part through which the functionalities of a CRO is carried out.