OSCILLOSCOPE

Oscilloscope is a measuring instrument which can show us the "shape" of the electrical signal by showing a graph of voltage versus time on the screen. It was like a voltmeter with extra function, how the voltage varies with time, a graticule every 1 cm grid allows us to make measurements of voltage and time on the screen (the screen).

Oscilloscope consists of two parts:  

Display
Display resembles display on a television screen. Oscilloscope display on the display serves as a test signal. On the Oscilloscope Display transverse stripes are vertical and horizontal form boxes called div. Horizontal axis represents time and the vertical axis represents voltage.
Control panel
The control panel contains buttons that can be used to adjust the display on the screen. The buttons on the panel of the oscilloscope, among others:

     Focus               : Used to adjust focus
     Intensity           : To adjust the brightness of the lines displayed on the screen
     Trace                : Adjusting the tilt axis line Y = 0 in the screen
     Volt / div          : Set the value of voltage is represented by a div on the screen
     Time / div         : Set the value of time is represented by a div on the screen
     Position            : To adjust the normal position of the X axis
     AC / DC           : Set the function of the coupling capacitor

 

However, if the button is placed on the DC position, the signal will be measured by its DC component :

     Ground           : Used to view the location of the ground position on the screen.
     Channel ½      : Select the channel / channels are used.

In general, the oscilloscope consists of two channels (Dual Trace) that can be used to view two different signals, for example, channel one is installed to see the input signal and channel two to see the output signal.