Thursday, March 14, 2013

What is a Function Generator

A function generator is a piece of electronic test equipment used to generate electrical waveforms. These waveforms can be either single-shot , or repetitive in which case some kind of triggering source is required (internal or external).An electronic device used to generate a signal representing the periodic value of a given mathematical function, especially sine, triangle,square and sawtooth waveforms. I like to share this Buoyancy Force Equation with you all through my article.


Features and controls

Most function generators allow the users to choose the shape of the output from a small number of options. Sine wave     : The signals curves like a sinusoid from high to low voltage. Square wave :The signals goes directly from high to low voltage. Triangle wave :The signals goes from high to low voltage at a fixed rate.The amplitude control on a function generator varies the voltage difference between the low and high  voltage of the output signal. The direct current (DC) offset control on a function generator varies the average voltage of the signal relative to the ground. The frequency control of a function generator controls the rate at which the output signal oscillates. On some function generators, the frequency control is a combination of the different controls. One set of controls chooses the broad frequency range (order of magnitude) and the other selects precise frequency. This allows the function generator to handle the enormous variation in frequency scale needed for the signals. The duty cycle of a signal refers to the ratio of high voltage to low voltage time in a square wave signals. Having problem with Emp Electromagnetic Pulse keep reading my upcoming posts, i will try to help you.


How to use a function generator

After powering on the function generator, the output signal needs to be configure to the desired shape. Typically, this means connecting the signals and ground leads to an oscilloscope to check the controls. Adjust the function generator until the output signal is correct, then attach the signal and the ground leads from the function generator to the input and ground of the device under the test. For some applications, the negative lead of the function generator should attach to the negative input of the device, but usually attaching to ground is sufficient.

1 comment:

  1. It is nice to know this information. Thanks a lot for sharing. But I wonder how to choose the right function generator. What will be the criteria in choosing?
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