External interference control system and method for magnetic environmental simulation experiment device
A simulation test and control system technology, applied in the fields of magnetic/electric field shielding, electrical components, etc., can solve the problems of not considering the disturbance of the industrial magnetic field to the magnetic field of the equipment, and the source of interference is far away
Active Publication Date: 2009-06-10
BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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[0008] No matter the existing closed-loop method or open-loop method, because it assumes the consistency of the magnetic field change within a certain distance range, they are all designed for the fluctuation of the earth's magnetic field, without considering the disturbance of the industrial magnetic field to the magnetic field of the equipment. It is because the magnetic test equipment abroad is generally far away from the source of industrial magnetic field interference, and the industrial magnetic field disturbance can be ignored
For industrial magnetic field interference, the above two control methods cannot be used, because the fluctuation of the geomagnetic field can be considered to be equal within a certain distance range, and the industrial magnetic field interference will decay as the distance between the interference source and the interfered object changes from near to far.
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[0026] The present invention will be described in detail below in conjunction with the accompanying drawings.
[0027] This control method is also called "open-loop average value external disturbance control method", referred to as open-loop average value method. The basic principle is that the central magnetic field of the magnetic test equipment is generated by the main coil. When the external disturbance magnetic field causes the central magnetic field of the equipment to change, another set of compensation coils will generate a small value of magnetic field to offset this change and achieve a stable magnetic field. Purpose.
[0028] refer to figure 1 and figure 2 , a magnetic environment simulation test equipment external interference control system, consisting of the main coil 1 of the magnetic environment simulation test equipment, the compensation coil 2 fixed on the same frame as the main coil 1 but with different coil constants, and two symmetrical and identical co...
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The invention relates to an external interference control system and a control method thereof for simulation test equipment in magnetic environment. The central magnetic field of the magnetism test equipment is generated by a main coil; and when the central magnetic field of the equipment is changed because the external interferes the magnetic field, the other group of compensation coils can generate certain magnetic fields with a small value to counteract the change, so as to reach the purpose of stabilizing the magnetic filed. The invention comprehensively considers interference caused by an industrial magnetic field and a ground magnetic field to the magnetic field of the magnetism test equipment, and obtains good effect in practical application.
Description
technical field [0001] The invention belongs to the application field of magnetic environment simulation test, and in particular relates to an external interference control system and control method for magnetic environment simulation test equipment. Background technique [0002] In the spacecraft environmental engineering technology, it is necessary to conduct magnetic tests on satellites, components, components, etc. in the magnetic environment simulation test equipment. During the test, changes in the magnetic field of the surrounding environment will cause disturbances to the magnetic field generated in the center of the magnetic environment simulation test equipment, and these disturbances include short-term changes in the earth's magnetic field and the impact of industrial magnetic fields. In order to ensure the accuracy of the test data, it is necessary to solve the problem of the interference of the earth's magnetic field and the industrial magnetic field on the magn...
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IPC IPC(8): H05K9/00G01M19/00
Inventor 易忠史尧宜齐燕文肖琦马慧媛
Owner BEIJING INST OF SPACECRAFT ENVIRONMENT ENG