FUNCTION GENERATOR:
A function generator is a signal source that has the capability of producing different types of waveform as its output signal. the most common output waveforms are sine waves, triangular waves,square waves,and sawtooth waves. the frequencies of such waveforms may be adjusted from a fraction of a hertz to several hundred kHz.
Actually the function generators are very versatile instruments as they are capable of producing a wide variety of waveforms and frequencies. in fact,each of the waveform they generate are particularly suitable for a different group of applications. the uses of sinusoidal outputs and square wave outputs have already been described in the earlier arts. the tringular wave and sawtooth wave outputs of function generators are commonly used for those applications which need a signal that increases specific linear rate. they are also used in driving sweep oscillators in oscilloscopes and the X-axis of X-Y recorders.
Many function generators are also capable of generating two different waveforms simultaneously(from different output terminals,of course). this can be a useful feature when two generated signals are required for particular application. for instance,by providing a square wave for linearity measurements in an audio system, a simultaneous sawtooth output may be used to drive the horizontal deflection amplifier of an oscilloscope,providing a visual display of the measurement results.
A function generator is a signal source that has the capability of producing different types of waveform as its output signal. the most common output waveforms are sine waves, triangular waves,square waves,and sawtooth waves. the frequencies of such waveforms may be adjusted from a fraction of a hertz to several hundred kHz.
Actually the function generators are very versatile instruments as they are capable of producing a wide variety of waveforms and frequencies. in fact,each of the waveform they generate are particularly suitable for a different group of applications. the uses of sinusoidal outputs and square wave outputs have already been described in the earlier arts. the tringular wave and sawtooth wave outputs of function generators are commonly used for those applications which need a signal that increases specific linear rate. they are also used in driving sweep oscillators in oscilloscopes and the X-axis of X-Y recorders.
Many function generators are also capable of generating two different waveforms simultaneously(from different output terminals,of course). this can be a useful feature when two generated signals are required for particular application. for instance,by providing a square wave for linearity measurements in an audio system, a simultaneous sawtooth output may be used to drive the horizontal deflection amplifier of an oscilloscope,providing a visual display of the measurement results.
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