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Data acquisition, principles sampling frequency

The total sampling period of the FID, known as the acquisition time, is ultimately dictated by the frequency resolution required in the final spectrum. From the Heisenberg s Uncertainty Principle, the resolution of two lines separated by Ai/ Hz requires data collection for at least 1/Ai/ s. If one samples the FID for a time that is too short, then the frequency differences cannot be resolved and fine stmcture is lost (the minimum linewidth that can be resolved is given approximately by 0.6/AQ). Likewise, if the signal decays rapidly then one is unable to sample it for a long period of time and again can resolve no fine stmcture. In... [Pg.42]

See other pages where Data acquisition, principles sampling frequency is mentioned: [Pg.5]    [Pg.514]    [Pg.5]    [Pg.356]    [Pg.162]    [Pg.169]    [Pg.41]    [Pg.27]    [Pg.91]    [Pg.194]    [Pg.54]    [Pg.311]    [Pg.132]    [Pg.306]   
See also in sourсe #XX -- [ Pg.763 ]



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