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The Magnet Torquer is an instrument used for satellite attitude control. Generating an own magnetic field which interacts with the Earth’s magnetic field, it produces a mechanical torque onto the satellite.
The detailed mechanical design generally depends on the geometrical properties and requirements of the respective project. Therefore length, position and mounting of the internal electronics and the electrical specifications have to be adaptable.
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MTR-X is a magnetorquer rod with control electronics included and two redundant parallel wound coils on one core rod. It can be used in two modes:
- Static mode using only magnetization of the rod for a weaker magnetic field and
- Current mode uses a constant current for a strong magnetic field.
The interface is digital: The Torquer has its own control circuit, which magnetizes and demagnetizes the rod by controlling the current.
This signal interface consists of a standard asynchronous SCI on RS422/RS485 level. The baud rate is adjustable up to 1Mbaud.
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