Measuring coil of spacecraft magnetorquer and measuring method

Abstract

The invention discloses a measuring coil of a spacecraft magnetorquer, wherein the measuring coil comprises a coil framework, a coil winding and a wire-connecting column; the coil framework comprises two parallel opposite high-low temperature resistant material plates which are symmetrical in shape; the shape of the upper part of each plate is more than half roundness; the lower part of the roundness forms a long rectangular shape through a transition circular arc; a cylinder is connected and arranged between the two plates; a through hole is formed on the two plates and the cylinder along the common circle centre axis in a penetrating manner; the inside diameter of the through hole is slightly more than the outside diameter of a magnetorquer to be measured; the coil winding is wound along the outside diameter of the cylinder between the two plates of the coil framework; the wire-connecting column is fixed at two rectangular sides at the lower part of the two plates of the coil framework; and two ends of the coil winding are connected to the wire-connecting column. The invention also discloses a measuring method by utilizing the coil. Compared with the prior art, the method disclosed by the invention has the advantages of being rapid in measurement speed, simple in measurement step and easy to operate and perform automatic test; in addition, automatic testing equipment is very easy to develop according to the method.

Description

technical field [0001] The invention belongs to the magnetic measurement field of a spacecraft magnetic torque device, and in particular relates to a method for measuring the magnetic moment of a magnetic torque device in a high and low temperature changing environment. Background technique [0002] The magnetic torquer is the execution part of the guidance, navigation and control subsystem of the spacecraft. It generates torque through the interaction between its own magnetic moment and the environmental magnetic field. It is suitable for attitude control and angular momentum control of the spacecraft, and to reduce the environmental torque The attitude drift is generally used for low-orbit satellites. Once the magnetic torquer fails due to the harsh working environment, it will shorten the life of the entire satellite. Therefore, the reliability and lifespan of the magnetic torquer will be directly related to the lifespan and reliability of the satellite. The high and lo...

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Problems solved by technology

[0004] However, the measurement method disclosed in this document only gives a general description, and does not involve a detailed measurement method

And the test coil is used in the measurement method disclosed in this document, but its specific structure is not disclosed. In the actual measurement process, the measurement of the working magnetic moment of the magnetic torque device cannot be carried out because the structure of the test coil cannot be known.

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