Field lock Hs (unlocked) The field strength might vary over time due to aging of the magnet, movement of metal objects near the magnet, and temperature fluctuations. 61}765432b o The field lock is a separate NMr spectrometer within your spectrometer. Lock This spectrometer is typically tuned to Freq the 2d NMr resonance frequency. Lock +It constantly monitors the resonance Field frequency of the D signal and makes minor changes in the b. magnetic field to keep the resonance frequency constant The zd signal comes from the deuterium solvent used to prepare the sample. THNMR YAN
Field Lock The field strength might vary over time due to aging of the magnet, movement of metal objects near the magnet, and temperature fluctuations. The field lock is a separate NMR spectrometer within your spectrometer. This spectrometer is typically tuned to the 2D NMR resonance frequency. It constantly monitors the resonance frequency of the 2D signal and makes minor changes in the Bo magnetic field to keep the resonance frequency constant. The 2D signal comes from the deuterium solvent used to prepare the sample. THNMR YAN
Shim Coils Correct minor spatial inhomogeneities in the bo magnetic field o Inhomogeneities: caused by the magnet design, materials in the probe, variations in the thickness of the sample tube, sample permeability, and ferromagnetic materials around the magnet Magnet Shim coil Z Shim 0Z1Z273Z425 Field XXZ XZ2X73X2Y2 XYX3 I Y YZ YZ2 X2Y2Z YZ3 Y3 XYZ THNMR YAN
Shim Coils Correct minor spatial inhomogeneities in the Bo magnetic field. Inhomogeneities: caused by the magnet design, materials in the probe, variations in the thickness of the sample tube, sample permeability, and ferromagnetic materials around the magnet. Shim Coil Z0 Z1 Z2 Z3 Z4 Z5 X XZ XZ2 XZ3 X2Y2 XY X3 Y YZ YZ2 X2Y2Z YZ3 Y3 XYZ THNMR YAN