The Mag629 three-axis field sensor has long been a preferred solution. Interest is increasing in the use of fluxgate sensors on unmanned aircraft, where the unpackaged Mag669 is recommended for integration into onboard systems in manned aircraft. Both these sensors have been tested to military standards.
Bartington also offers systems for calibration of compasses used on aircraft, enabling calibration checks of compass bases or pads located at an airport or an air base, carried out using two Mag-01H DI systems. For checks of compasses after removal from aircraft, the system can be used to monitor the changes in declination during the calibration procedure. Helmholtz Coils can also be used to perform the compass calibration.