The magnetorquer is the executive component of a satellite attitude control system. Inside the magnetorquer are the soft alloy rods with high permeability, low residual magnetism and low-loss. The outer layer is wound with enameled wire. The unit is orthogonally installed inside the satellite. A current supplied by the control computer passes through the magnetorquer and generates a proportional magnetic moment M. This magnetic moment then generates a reaction torque T with the Earth’s magnetic field B. T = M × B is the satellite control torque which is used for the reaction wheel to unload momentum and control satellite attitude.

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Last updated: 2019-11-27

MQ Series Magnetic Torquer



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