free induction decay


free induction decay

noun

Definition of FREE INDUCTION DECAY

: a time-based electrical signal that is detected in a nuclear magnetic resonance spectrometer, that is produced by induction from the motion of the magnetic moments of nuclei, that decays with time, that can be converted to a more conventional frequency-based signal using analysis by Fourier transforms, and that with a suitable display can be used to extract more information from a test sample or subject than is possible in conventional nuclear magnetic resonance spectroscopy—abbreviation FID

Seen & Heard

What made you want to look up free induction decay? Please tell us where you read or heard it (including the quote, if possible).