Nuclear Magnetic Resonance (NMR) is widely used in medical diagnostics and chemicalanalysis. Due to rapid growing of the NMR applications, the conventional NMR systemsmay not fulfill the need of all applications. The development of a micro-NMR devicewould not only benefit the original NMR applications but could also open a door for newNMR applications. Two approaches for building a NMR system, Induction-DetectionNuclear Magnetic Resonance (IDNMR) and Force-Detection Nuclear MagneticResonance (FDNMR) are explored and compared in this paper. The comparison resultshows that the FDNMR approach outperforms the IDNMR approach in signal-to-noiseratio when the sample radius is below 410 μm for protons and 1900 μm for chlorides.

This suggests that the FDNMR approach is more appropriate for making the micro-NMRdevice.