Three Axis Magnetometer Calibration Checking Method and Apparatus.
DEPARTMENT OF THE NAVY WASHINGTON D C
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This patent concerns a three axis magnetometer is provided with a single calibration checking coil lying in a plane disposed at equal angles to each of the three orthogonal axes of sensitivity. Energization of the calibration checking coil with a known current while the calibrated magnetometer is in a known condition of calibration provides sensitivity readings for each of the three axes, which readings provide a standard of comparison for checking the calibration and sensitivity of the magnetometer by similar energization of the coil when the magnetometer is disposed in a remote operational environment.
- Test Facilities, Equipment and Methods
- Electricity and Magnetism