MAGNETOMETERS
The magnetometer sensor provides x-, y- and z-axes magnetic field component measurements, as well as a sensor temperature measurement which is used for the temperature compensation of the magnetic field measurement
UTILITY
The NSS tri-axial magnetometer utilises Anisotropic Magneto-Resistive (AMR) sensors which are co-located with offset compensating circuitry. The offset compensating circuitry nulls the characteristic offset voltage of the AMR sensor, which enhances the sensors performance. The sensor provides x-, y- and z-axes magnetic field component measurements, as well as a sensor temperature measurement which is used for the temperature compensation of the magnetic field measurement. Ideally mounted outside the spacecraft at the end of a rigid boom, this product includes low noise, precision processing and analogue-to-digital conversion circuitry which improves its linearity and reduces the drift sensitivity of the sensor head. The integrated processing circuitry and sensor head provides the mission with an accurate and stable magnetic field measurement at low power consumption. The power requirement is a regulated 5 V DC supply while the measured x-, y- and z-axes magnetic field components
are available on a digital serial interface.
• Small size and low mass
• Radiation tolerant COTS
• Supplied with calibration matrix
• Simple to interface
• Can be used for the calculation of magnetorquer rods control torque levels
• Attitude determination sensor when used with an IGRF reference model
• Angular rate determination sensor by comparing successive measurements
The NewSpace Systems (NSS) magnetometer is TRL 9 with significant in-orbit heritage. Developed in collaboration with the Space and Atmospheric Physics Group of Imperial College London, the sensor head first flew on the CINEMA mission and then as an integrated unit in July 2014. Since then, >190 units have been delivered to a variety of international missions and constellation programmes. To date, this product is baselined on 5
constellation programmes.
