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ÇóÖú·­Òë¾ä×Ó£ºThe distribution of computer power to individual instruments has led to the widespread use of methods such as the Fourier transform to produce new techniques: Fourier transform infrared(FTIR) and pulsed nuclear magnetic resonance spectroscopy.
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The Fourier transform, in essence, decomposes or separates a waveform or function into sinusoids of different frequency which sum to the original waveform. It identifies or distinguishes the different frequency sinusoids and their respective amplitudes.

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