103
edits
Changes
From Pumping Station One
→Theory
= Theory =
= Theory =
* First generation instruments would use a constant rf frequency but ramp the magnetic field up slowly, and this is in fact what this unit did in its original form.
* Second generation instruments would keep the magnetic field constant but pulse the RF, covering the entire set of radio frequencies. Advances in computing and signal processing enabled Fourier transforms, and this is precisely what the retrofit to this instrument allows it to do.
= Practice =
Unless performing more elaborate techniques, NMR spectra are generally a squiggly line. Y-Axis is intensity, X-Axis is PPM.
= Operation =
= Operation =
