Oscilloscope

Physics Department Kuwait University February, 2001 EXP. NINE Course 127 Cathode-ray background ( telescope) Objective To introduce the basic structure of a cathode-ray Oscilloscope. To pass well-known(prenominal) with the use of different control switches of the device. To visualize an ac signal, beatnik the amplitude and the frequency. Theory Cathode-ray Oscilloscope The device consists mainly of a hoover tube which contains a cathode, anode, grid, X&Y-plates, and a fluorescent fixture disguise (see Figure below). When the cathode is heated (by Fluorescent screen negatron heavy weapon Deflection plates Cathode Anode Y-plates Electron beam football field X-plates Figure 1: The basic structure of a CRO applying a microscopical potential going crosswise its terminals), it emits electrons. Having a potential difference amidst the cathode and the anode (electrodes), accelerate the 42 emitted electrons towards the anode, forming an electron beam, which passes to fall on the screen. When the dissipated electron beam strikes the fluorescent screen, a bright plain spot is produced. The grid, which is situated between the electrodes, controls the amount of electrons passing by dint of it thereby controlling the posture of the electron beam.

The X&Y-plates, atomic number 18 obligated for deflecting the electron beam horizontally and vertically. A drag on generator is connected to the X-plates, which moves the bright spot horizontally crossways the screen and repeats that at a certain frequency as the source of the signal. The voltage to be st udied is applied to the Y-plates. The liqu! ify sweep and Yvoltages produce a graph showing the variate of voltage with time, as shown in Fig. 2. Front panel The expect panel of the CRO is shown in Fig. 2. Power The trace ferment X-posit. Time/Div Focus Y-posit. Y-posit. Volt/Div X-mag Ch1 Volt/Div Ch2 Figure 2: The front panel of the CRO Alternating current (ac) An ac signal can be of different forms: sinusoidal, square, or triangular. The sinusoidal...If you spur to get a full essay, order it on our website: BestEssayCheap.com

If you want to get a full essay, visit our page: cheap essay