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What Exactly Is A Function Generator And What Is It Used For?
Review Of A Function Generator. It is essentially piece of test gear for any person that needs to to check or even manufacture electronic devices.
When you come right down to it it is something that produces various kinds of waveforms that are used to put to the test and develop many different types of electronic gear. You may also see it labeled as a signal generator, because it will make many different waveforms or functions.
That last explanation probably gives a better suggestion of what a function generator actually does. Contingent on what the purpose of the device you are developing or analyzing, will decide what type of function or wave you require to test out fully.
Typical functions which you will observe are Sine Waves, which nearly everybody will have heard of, but also frequently used functions or waves, are Saw Tooth, Square Waves and Triangular. I'm sure there are several more but again the device you are checking will be the deciding factor as to which of those are necessary. Also the size and repetition of the waves produced should be set on the function generator, normally by the turning of a button or flicking of a switch.
Whilst for the most part Function Generators are nice items of equipment that sit in your work area, you can also get software programs for the computer that will perform a similar task. It is a question of personal choice as to whether you will be a little more comfortable having a box that you can lay a hand on, handle and push buttons on or whether you might be content to vary controls and parameters in a computer program. The results are similar though.
If you want to double check that the right wave form is being created, simply connect to an oscilloscope.
If you are thinking of a Function Generator, then I'm sure I don't need to clarify an oscilloscope. But in the event that I do, what you will get is a visual representation of the output signal. For those who have ever seen ER or any other hospital performance on Television, that machine where you can see the heart rate beat, well that's a type of oscilloscope. And guess what, the heart would be the function generator.
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