Cathode ray oscilloscope1/7/2024 ![]() In the medical field and medical trials, it can be used for monitoring various body parameters like heartbeat rates and nervous reactions.Help measure capacitance and inductance values. 196, King, Temple and Thompson have described under the above title an infra-red spectrometer in which the spectrum is displayed on a cathode ray oscilloscope.Comparison between the phases and frequencies of electrical signals.To determine the amplitude of a waveform.While numerous, a CRO can be used for the following purposes:.Through this procedure, a CRO displays the applied input signal on the screen of CRT, providing signals in the time domain. The negative high voltage and positive low voltage are applied to CRT and other circuits respectively. 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.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.Vertical Amplifier – It amplifies the input signal for display on the CRT screen.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.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.
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