Spacemag & Spacemag-Lite Three-Axis Magnetometers World Leaders Magnetic Measuring Instruments
Spacemag & Spacemag-Lite Three Axis Magnetometer Bartington Spacemag & Spacemag-Lite Three-Axis Magnetometers Bartington Defence & Space offers two fluxgate magnetometers for spaceflight applications. Spacemag is designed for long term and interplanetary space missions and can be supplied with 150kRad radiation hardened components and ISO 7 assembly. For ground testing, we provide units built with standard components to reduce the cost to our users with cleanroom assembly available as an option. Spacemag-Lite, ideal for a variety of low Earth orbit (LEO) missions, has been designed to tolerate up to 50kRad of radiation exposure whilst using commercial off the shelf (COTS) components. This makes Spacemag-Lite suitable for both commercial and scientific missions, where cost is a consideration. The standard sensor is designed for CubeSat integration, though other configurations are also available depending on the mission requirement. Bartington is a registered trade mark of Bartington Instruments Limited in the following countries: United Kingdom, Australia, Brazil, Canada, China, European Union, India, Japan, Norway and the United States of America. Spacemag is a registered trade mark of Bartington Instruments Limited in the following countries: United Kingdom, the European Union, Brazil and the United States of America. Spacemag-Lite is a registered trade mark of Bartington Instruments Limited in the following countries: United Kingdom and the European Union.
Spacemag Features Shock and vibration tested to NASA-STD-7001 Vacuum compatible Option with radiation-hardened components Noise: 20pTrms/ Hz at 1Hz Typical Applications Spacecraft attitude sensing Geomagnetic field mapping Spacecraft magnetic signature measurement Options - Spacemag Options on components are available: Standard components and assembly 150krad components and cleanroom assembly (ISO 7)
Spacemag & Spacemag-Lite Three Axis Magnetometer Bartington Spacemag & Spacemag-Lite Specifications Performance Spacemag Spacemag-Lite Number of axes Three (right hand XYZ coordinate system) Three (right hand XYZ coordinate system) Polarity +ve non-inverting output when pointing North +ve non-inverting output when pointing North Full-scale measuring range ±100µT ±60µT Bandwidth at -3dB >100Hz >1kHz Measurement noise floor 10 to 20pTrms/ Hz at 1Hz 10 to 150pTrms/ Hz at 1Hz Scaling 100mV/µT 50mV/µT Offset error ±100nT (max) ±100nT (max) Offset temperature coefficient ±1nT/ C ±1nT/ C Scaling temperature coefficient ±100ppm/ C ±100ppm/ C Calibration error ±0.5% (at DC) ±0.5% (at DC) Orthogonality error <1 <0.5 Alignment error (to mounting face) <1 N/A Linearity error 0.0033% (least squares fit) 0.0033% (least squares fit) Frequency response Maximal flat response (±5%) from DC to 10Hz Maximal flat response (±5%) from DC to 15Hz Hysteresis <2nT for exposure to up to 2 x full scale <0.1% range for exposure to up to 10x range when unpowered Excitation breakthrough <20mV pk-pk at 16kHz <10mV pk-pk at 16kHz
Environmental Spacemag Spacemag-Lite Operating temperature range -55 C to +125 C -55 C to +65 C TBC Storage temperature -55 C to +125 C -55 C to +65 C TBC Vibration/Shock Successfully tested to NASA-STD-7001 N/A Radiation dose 150kRad hardened components (non-hardened component option available) Designed to withstand 50kRad Thermal vacuum operation Successfully tested details on request N/A Spacemag Mechanical Sensor head Electronics enclosure Dimensions 40 x 40 x 31mm 88 x 106 x 30mm Weight (approximate) 175g 275g Material PEEK with VITON sleeved cable Aluminium Connector 9 Pin D-sub male contacts on captive lead 2x 9 Pin D-sub: male for power and analogue output, female for sensor head Mounting arrangement 2x M4 clearance holes 4x M3 fixings 97 x 75mm pitch Spacemag-Lite Mechanical Sensor head Electronics enclosure Dimensions Weight (approximate) 20 x 20 x 20mm (±0.1mm) Cable length 2m when probe mounted remotely 50g incl. 2m cable 15g without cable Conforms to Pumpkin CubeSat Kit PCB specification 810-00253 rev A5 (90.2x95.9mm) 12g Material PEEK N/A Connector Solder to pads on electronics 2x Samtec ESQ-126-39-G-D or Samtec ESQ-114-39-G-D TBC Mounting arrangement 4x M3 Tapped holes Conforms to Pumpkin CubeSat Kit PCB specification 810-00253 rev A5 Electrical Spacemag Spacemag-Lite Voltage input ±15V (±5%) +5V and +3.3V Current consumption (max) +38mA, -15mA (typ) 33.5mA zero field; 35mA full range (+5V) and 8.5mA (3.3V) Analogue output ±10V (unbalanced, single ended ref. 0V) ±3V (balanced, differential output, each output 0.15V to 3.15V, 1.65V zero field) Output impedance 10Ω TBC
Bartington Defence & Space Ltd 5, 8, 10, 11 & 12 Thorney Leys Business Park Witney, Oxford, OX28 4GE. England T: +44 1993 706565 F: +44 1993 774813 E: sales@bartingtondefenceandspace.com W: The specifications of the products described in this brochure are subject to change without prior notice. DS2714/1