Quantum Magnetometer
In fields ranging from fundamental research to advanced industrial applications, the need for stable, ultra-sensitive magnetic field measurement is growing rapidly. Whether you are conducting atomic physics experiments, calibrating MRI systems or monitoring powerful magnets in particle accelerators, even the slightest drift or interference can compromise your results.
This is where KWAN-TEK’s High Field NV Magnetometer comes into play — a compact, reliable and cutting-edge instrument designed to deliver exceptional precision, stability and flexibility for magnetic field monitoring and control.
Why choose a quantum magnetometer?
Traditional magnetometers, while well established, face significant challenges when it comes to ultra-low drift, wide dynamic range and long-term stability. Variations in temperature, mechanical vibrations or electromagnetic noise can distort measurements and make calibration time-consuming and costly.
Our quantum magnetometer, based on nitrogen-vacancy (NV) center diamonds, offers a unique advantage: it uses a quantum property of NV doped diamond crystals to read the magnetic field directly through the electron spin resonance of NV centers. This means the measurement is absolute, drift-free and highly resilient to thermal fluctuations — even under varying operating conditions.
A proven tool for demanding research
The High Field NV Magnetometer is already trusted in many research laboratories around the world. Atomic physicists use it to stabilize magnetic fields for precision spectroscopy, optical pumping experiments and quantum optics tests. Its reliability makes it an essential tool for experiments where control over magnetic fluctuations is crucial to guarantee reproducible data.
In MRI development and medical imaging, the quantum magnetometer supports the fine calibration of the strong fields generated by MRI magnets, helping engineers and researchers maintain consistent image quality and system performance.
Industrial benefits: measurement where it matters
Beyond academic research, quantum magnetometers are increasingly integrated into industrial processes that rely on strong, stable magnetic environments. From semiconductor production lines to advanced manufacturing of superconducting components, maintaining magnetic field consistency is vital.
In quality control, the NV magnetometer can verify the behavior of magnets used in electric motors or magnetic sensors. Its compact form factor makes it easy to mount close to production lines for real-time feedback, helping operators detect anomalies before they affect performance.
How it works
At the heart of the High Field NV Magnetometer is a fiber optic millimeter-scale probe that houses a diamond crystal containing nitrogen-vacancy centers. When the diamond is illuminated by a laser and excited by microwaves, the NV centers emit photoluminescence that shifts according to the strength of the surrounding magnetic field.
By analyzing this light, the instrument measures the magnetic field vector with high resolution and stability. The data is transmitted directly to a control unit, which can use this information to stabilize or adjust magnetic setpoints in real time.
This unique method of measurement eliminates the need for frequent recalibration. The diamond’s quantum properties make the system inherently immune to thermal drifts that affect conventional magnetic sensors.
Measure magnetic fields from 1 mT to 30 mT — or even greater magnetic fields upon request — to cover a broad spectrum of use cases.
The quantum approach ensures measurement stability with a drift as low as < ppm/day, making it ideal for long-duration experiments.
The millimeter-scale probe fits easily into tight experimental setups or industrial stations. The distance between the sensor and the control unit can reach up to 5 meters, giving you maximum installation flexibility.
Because measurement relies on quantum spin resonance, thermal fluctuations have minimal impact — a major advantage in environments where temperature stability can’t be guaranteed.
Thanks to its simple connection and digital control interface, the NV magnetometer is easy to set up and use with standard laboratory software or custom industrial systems.
Examples of quantum magnetometer applications
Fundamental research
Stabilize magnetic fields for quantum optics, cold atom traps or spin-based quantum computing test benches.
Medical imaging
Support MRI system calibration, ensuring precise field uniformity.
Particle accelerators
Control beamline magnets with high confidence in field stability.
Semiconductor manufacturing
Monitor magnetic components that influence ion implantation or lithography processes.
Superconductivity R&D
Study the behaviour of materials in varying fields with minimal interference.
Industrial QA/QC
Verify the magnetic properties of components before assembly in critical systems.
At KWAN-TEK, we know that deploying a quantum magnetometer requires more than just hardware. That’s why we offer comprehensive support, from integration advice and user training to real-time troubleshooting and remote calibration checks.
Our R&D team continuously works with research partners, universities and industrial clients to refine our NV magnetometer solutions. This ensures that our instruments evolve with the needs of the quantum sensing community and the growing demands of high-tech industries.
Ready to bring quantum precision to your measurements?
When absolute precision, minimal drift and maximum flexibility matter, the High Field NV Magnetometer delivers proven performance — without the headaches of constant recalibration or complex maintenance.
Contact our team to discuss your project, request technical details or get a demo of how quantum magnetometry can support your experiments and industrial processes.
KWAN-TEK — bringing quantum precision to magnetic field measurement.