How to use an oscilloscope

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How to Use an Oscilloscope

how to use an oscilloscope

EEVblog #168 - How To Set Up An Electronics Lab

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An oscilloscope is a very useful piece of electronic test equipment. When monitoring heart beats, what do the two axes horizontal and vertical of the oscilloscope screen represent? In general electronics use, when measuring AC voltage signals, what do the two axes horizontal and vertical of the oscilloscope screen represent? Oscilloscope function is often best learned through interaction. Be sure to have at least one oscilloscope operational in the classroom for student interaction during discussion time. While similar in function to the CRT used in televisions, oscilloscope display tubes are specially built for the purpose of serving an a measuring instrument. Explain how a CRT functions.

An oscilloscope , previously called an oscillograph , [1] [2] and informally known as a scope or o-scope , CRO for cathode-ray oscilloscope , or DSO for the more modern digital storage oscilloscope , is a type of electronic test instrument that graphically displays varying signal voltages , usually as a two-dimensional plot of one or more signals as a function of time. Other signals such as sound or vibration can be converted to voltages and displayed. Oscilloscopes display the change of an electrical signal over time, with voltage and time as the Y- and X-axes, respectively, on a calibrated scale. The waveform can then be analyzed for properties such as amplitude , frequency , rise time , time interval, distortion , and others. Modern digital instruments may calculate and display these properties directly. Originally, calculation of these values required manually measuring the waveform against the scales built into the screen of the instrument.

It is necessary to know how to use an oscilloscope properly to be able to make the best use of it. By knowing the basics of using an oscilloscope it is possible to fault find circuits more effectively and more swiftly as well as gaining a better understanding of how they the circuits work. Although oscilloscopes are more expensive than some other items of test equipment including multimeters, they are often found in the homes and workshops of electronics enthusiasts. As a result it is important that people are aware of how to use an oscilloscope. In view of the flexibility and level of control required to use an oscilloscope, there are a large number of controls that are present.

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For example, if you want to verify that the output from a pin of an integrated circuit is emitting a square wave, touch the oscilloscope probe to the pin and look at the display on the scope. But once you get those settings adjusted correctly, you should be able to visualize the square wave. Never connect the oscilloscope probe directly to an electrical outlet. If you want to measure voltage from an outlet, just use your regular multimeter. The following paragraphs give a few ideas for viewing various kinds of waveforms with an oscilloscope:. To view a simple DC waveform, try connecting the oscilloscope to a 1.

How to use an oscilloscope

To create this article, 12 people, some anonymous, worked to edit and improve it over time. Together, they cited 6 references. This article has also been viewed 47, times.

Basics of O-Scopes -- An introduction to what, exactly, oscilloscopes are, what Using an Oscilloscope -- Tips and tricks for someone using an oscilloscope for.
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