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A Digital Oscilloscope  is an electronic test equipment which is used to measure and compare a signal graph with respect to time. It is one of the commonly used as well as multipurpose test equipment to test even latest of Electronic-circuits. This test equipment provides graphical representation and analytical information about the signal amplitude (Voltage/Current/Power etc) as time’s function. This is very useful in analysing the condition and performance of the circuit/equipment.

Wait. Its functions does not end here only. You can use this test equipment for measuring many other things too. It may also be used to measure clock-frequency, duty-cycle of a pulse width modulated signal, the propagation-delay, signal’s rise/fall time etc. In addition, this test equipment can even carry out the task of alerting yourself whenever a glitch is observed in your logical and bouncy switches. What more you want??

Digital oscilloscope

Functions of Digital oscilloscope.

An oscilloscope can be utilised for finding :

  • Signal-frequency
  • Signal-amplitude ( for both DC and AC voltages)
  • Phase-difference between 02 signals
  • Wave-form analytics such as :-
  1. Pulse-width
  2. Pulse’s Fall-time
  3. Pulse’s Over-rising
  4. Pulse’s rise-time

Here, we are taking Digital Oscilloscope model Tektronix TDS3034B as example for our convenience. This Tektronix oscilloscope contains four i/p channels. Its various controls may be divided in six fundamentals groupings:

Oscilloscope button details1.  Vertical-group

It manages perpendicular placement of various traces. It can also control the choice of traces to be displayed and its scales.

2.  Horizontal-group

It manages the time-scale and its spot on the display scale.

3.  Trigger-group

As the name suggests, it manages the trigger. It is used to align a repetitive signal in horizontal position.

4.  Acquire group

It manages the process by which a sample is to be acquired. It consists of a ‘Autoset’ pushbutton, which on the basis of its preset settings, does the automatic selection of other settings so that the best available wave-form can be displayed. If you ask me, I will say that it is the most handy button of the entire equipment.

5.  Miscellaneous-group

In this grouping, there is a bunch of unmarked buttons. It is located at topmost part of Control-panel. These unmarked buttons manages some controls that have very sophisticated functions and does not have to do anything with the waveform display.

6.  BasicSelector-Button

As the name indicates, it is used for basic selection and is located at the right-side & bottom-side of the display.

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