ISIS Magnetorquer board

Flight heritage since 2013


The ISIS MagneTorQuer board (iMTQ) is a PCB based 3-axis magnetic system. It is designed to provide maximum flexibility in placing actuators and magnetometer in a CubeSat structure. Providing actuation of 0.2Am2, the system can be placed in a stack or in between stacks in ISIS structures. The magnetorquer can be controlled over digital or analog interface and provides telemetry over I2C.
Availability: 8 – 12 weeks

  • Features
  • Performance
  • Product properties
  • Documents
  • Three axis magnetometer
  • Three actuators; two torque rods and one air core torquer.
  • Current sensors for each torquers
  • Temperature telemetry of actuators
  • Nominal 0.2Am2 actuation per actuator
  • Suitable to detumble up to 12U (~24kg) CubeSats
  • Applications
    • CubeSat detumbling & magnetic attitude control
    • Reaction wheel desaturation
  • Interface
    • I2C control allows for use in any CubeSat bus
    • Compatible with PC-104 mechanical interface
    • Compatible with most CubeSat structures
  • Actuation level
    • Nominal: 0.2 Am2 (@ 20°C, 5V)
  • Power consumption (@ 20°C)
    • No actuation: 175 mW
    • Full actuation (3-Axis): <1.2W
  • Maximum actuation envelope error: <5%
  • Mass: ~196 grams
  • Qualified operational temperature range: -40 to +70°C
  • Dimensions (l x w x h): 95.9 x 90.1 x 17 mm3
  • Supply voltage: 5V