Magnetic torque is the attitude determination and control system of spacecraft, which controls the attitude through magnetic force. Simple structure, easy to control. The main types are permanent magnetic force and electromagnetic magnetic force, which are one of the modules applied to low orbit micro satellites.
What is a magnetic torque used for?
The magnetic torque used in spacecraft is a device used to control the attitude and heading of the spacecraft,and is an attitude determination and control system.Can help the spacecraft fly stably and maintain the correct direction.By controlling the magnetic field to generate torque,it affects the attitude and heading of the spacecraft.It have the advantages of simple structure,low power consumption,large output torque,easy control,high reliability,and long service life.
Working principle
A magnetic torque is a device used to generate a magnetic field and apply torque to magnetic materials.It can be used to control,move,or rotate magnetic materials such as iron,steel,etc.The interaction between the magnetic field generated by magnetic materials and the external magnetic field.By applying an external magnetic field or changing the position of the magnetic material,the torque generated by the magnetic torque can be controlled,thereby achieving control over the magnetic material.
Magnetic torque is one of the main modules of attitude control system for low orbit micro satellites,but it also has some drawbacks,such as high temperature sensitivity,strong magnetic field generated during operation,and inability to work simultaneously with magnetometers.
How many types of magnetic torque are there?
Magnetic torque are generally divided into two types:
The permanent magnet torque uses the magnetic field generated by the permanent magnet to control the attitude of the spacecraft.Its advantages are simple structure,reliable operation,and no need for external power supply.However,the disadvantage is that it cannot adjust the size of the magnetic field.
Electromagnetic torque controls the size and direction of the magnetic field by applying electricity around the magnet,thereby generating the desired torque.Its advantage is that it can precisely control the magnetic field,but its disadvantage is that it requires additional power supply and complex control systems.