Nuclear Magnetic Resonance
Nuclear Magnetic Resonance (NMR) is the most precise technology in magnetic field measurement.
There are two fundamental methods of detecting the Nuclear Magnetic Resonance. The continuous-wave approach is like tuning a radio: we slowly adjust the frequency until we “tune in” the resonance. To be able to detect it, we must cross and re-cross the resonance, which means we must modulate either the frequency or the magnetic field.
The pulsed-wave approach, on the other hand, is like ringing a bell: we strike the sample with a broad-band pulse, and the sample absorbs and reradiates at the Larmor frequency. The pulsed mode approach requires modern, fast-switching electronics, but it is more straightforward and generally delivers greater precision.
Built on pulsed-wave NMR detection and advanced signal processing, our new generation of magnetometers are faster, more precise and more robust than legacy continuous-wave NMR detectors.
With its many advantages including improved precision, high fields, inhomogeneous fields, rapid measurement and shorter search time, the PT2026 NMR magnetometer opens a host of new application areas.
Introduced 25 years ago, Metrolab’s NMR magnetic field cameras revolutionized field mapping for MRI magnets. Our cameras reduced acquisition times from hours to minutes, positioning errors to a fraction of a millimetre, and rendered negligible human and drift errors.