A Vector Diamond Magnetometer in a Moving Vehicle

Nitrogen vacancy centres in diamond can be used for vector magnetometry. In this work we present a portable vector diamond magnetometer. Its vector capability, combined with feedback control and robust structure enables operation on moving platforms. While placed on a trolley, magnetic mapping of a laboratory is demonstrated and the magnetometer is shown to be operational in a moving van with the measured magnetic field shifts for the x, y, and z axes being tagged with GPS coordinates. These mapping measurements are in agreement with measurements taken simultaneously with a fluxgate magnetometer.