title: Oscilloscope
text: 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.
  
  Description 
  
  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.
  
  Other websites 
  
   Oscillograph 1911 Encyclopædia.
   Online oscilloscope simulation
   Oscilloscope Tutorial 
   The Cathode Ray Tube site
   Digital Storage Oscilloscope measurement basics
   Oscilloscope FAQ
   Oscilloscope Articles & Resources
   Using a Common Oscilloscope 
   Features of handheld Oscilloscope
   Quick and easy tutorial to learn concepts and use. Technical terms explained in clear and simple way.
  
  References 
  
  Laboratory equipment
  Electronics
  Measuring tools
  Machines