Advantages And Disadvantages Of Oscilloscopes

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Engineering Perspective
1. INTRODUCTION In various applications, displaying voltage waveforms of a circuit plays very essential role in understanding the operation of the electric circuits. For that intention, a number of measuring instruments are used like Voltmeter, Ohmmeter, Ammeter or the Oscilloscope.

Oscilloscope is a voltage sensing electronic instrument used to visualize certain voltage waveforms. Oscilloscope can display the variations in voltage waveforms in time on the oscilloscope’s screen. It is also used to compare the different voltage waveforms.

2. CATHODE RAY OSCILLOSCOPE HISTORY The Braun tube was known in 1897, and in 1899 Jonathan Zenneck equipped it with beam-forming plates and a magnetic field for sweeping the
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When the electrons strike the screen, the phosphor emits a visible light spot that can be seen on the screen.

Since the quantity of deflection is directly related to the applied voltage, in fact the voltages VY and VX determine the coordinate’s axis of the bright visible spot created by an electron beam.


Several types of oscilloscopes are manufactured around the globe. One such simple type is CRO (Cathode Ray Oscilloscope). As the basic principle of Oscilloscope had already been illustrated. This type of Oscilloscope manufacturing is quite simple. Company's just need to make Cathode Ray Tube for the display of the oscilloscope, some control buttons, some electromagnetic plates and an electron gun. These are the materials which can be assembled to make CRO. Fig.5 1. Deflection Plates; 2. Electron Gun; 3. Electron Beam; 4. Control Grid(Focusing Coil); 5. Phosphor-coated interior of the screen(Florescent Coating)

In the start our company should follow this conventional method to manufacture CRO at home. Later on, company should acquire new techniques to manufacture Cathode Ray Oscilloscope and its various

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