Does anybody really understand the FFT function on an oscilloscope ?
What exactely does the display show you ?
Barry Wilkins
What exactely does the display show you ?
Barry Wilkins
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Re: Fft
Q. What is the FFT (Fast Fourier Transform) math function of an oscilloscope useful for?
A. There are a variety of uses that can benefit from viewing the frequency spectrum of a signal. Using the FFT math function on a time domain signal provides the user with frequency domain information and can provide the user a different view of the signal quality, resulting in improved measurement productivity when troubleshooting a device-under-test. Examples include:
Analyze harmonics in power lines
Measure harmonic content and distortion in systems
Characterize noise in DC power supplies
Test impulse response of filters and systems
Analyze vibration
http://www2.tek.com/cmswpt/faqdetail...&ci=1239&lc=EN"Tantalum for the brave, Solid Aluminium for the wise, Wet Electrolytic for the adventurous"
-David VanHorn
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