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An oscilloscope (sometimes abbreviated CRO, for cathode ray oscilloscope, or commonly just scope or O-scope) is a piece of electronic equipment that lets you see changes in signal voltage. For example, if you want to see the signal a small electronic timer was producing, you could connect it to an oscilloscope and see.
Usually, it shows a two-dimensional graph of one or more electrical potential differences (vertical axis). These graphs are plotted with time or of some other voltage along horizontal axis.
A typical oscilloscope is usually box shaped with a display screen, numerous input connectors, control knobs and buttons on the front panel. To aid measurement, a grid called the graticule is drawn on the face of the screen. Each square in the graticule is known as a division.
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- Quick and easy tutorial to learn concepts and use. Technical terms explained in clear and simple way.