How To Use A Function Generator

Function Generator Defined. It is essentially piece of test gear for anyone that needs to to test or even just develop electronic devices.

When you come right down to it it is something that produces various kinds of waveforms that are used to trial and develop many different sorts of digital apparatus. You may also see it labeled as a signal generator, because it will make a variety of waveforms or functions.

That last description most likely offers a better image of what a function generator actually does. Contingent on what the purpose of the device you are developing or testing, will decide what type of function or wave you need to check out completely.

Typical functions which you will notice 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 many more but again the circuitry you are testing will be the determining factor as to which of those are essential. Also the size and repetition of the waves created should be set on the function generator, normally by the turning of a button or flicking of a switch.

Whilst most Function Generators are nice pieces of apparatus that sit in your test area, you can also get software programs for the computer that will perform a similar task. It is a matter of personal choice as to whether you are more at ease using a box that you can lay a hand on, handle and push buttons on or whether you might be happy to change settings and parameters in a computer program. The outcomes are the exact same though.

If you want to double check that the right wave form is being created, simply connect to an oscilloscope.

If you are considering a Function Generator, then I'm sure I don't need to explain an oscilloscope. But just in case I do, what you're going to get is a visible representation of the output signal. For those who have ever seen ER or any other hospital performance on TV, that thing where you can see the heart beat, well that's a sort of oscilloscope. And guess what, the heart will be the function generator.

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