Method for detecting safe magnetic environment of magnet, and application thereof
A magnetic environment and magnet technology, applied in the direction of the size/direction of the magnetic field, can solve the problems of unclear surrounding environment, complex surrounding environment, inability to build models, etc., to avoid catastrophic consequences, accurate results, and easy operation.
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Embodiment 1
[0028] The China Spallation Neutron Source is equipped with a 9T superconducting magnet sample measurement system, which is planned to be installed in the sample cavity of the neutron spectrometer to provide a strong magnetic field environment for various samples. Although the sample chamber is made of non-magnetic aluminum alloy material, the sample stage and the surrounding operating platform are made of strong magnetic ferrite carbon steel, so it is very easy to be magnetized and reacts on the superconducting magnet. In order to prevent the superconducting magnet from being damage, this example carried out a force test on it.
[0029] In this example, the force threshold of the superconducting magnet sample measurement system to be tested is 50 kg force, and the weight of the magnet to be tested is 260 kg. For this reason, three sets of pressure sensors with a range of 200 kg are specially customized for this example to test the safe magnetic environment of the magnet to be...
Embodiment 2
[0037] In Embodiment 1, the longitudinal force of the magnet to be tested is calculated, but in reality, the force of the superconducting magnet is often very complicated; wherein, most of the force that causes damage to the superconducting coil of the superconducting magnet is the transverse force. Therefore, when evaluating the safe magnetic environment of the magnet to be tested, it is more accurate to decompose the force of the magnet to be tested into longitudinal force and lateral force. Therefore, in this example, the force change of each pressure sensor is calculated according to the method of Embodiment 1, the center of gravity displacement of the magnet to be tested is calculated by the method of torque, and the lateral force after the magnetic field is applied is calculated according to the center of gravity displacement. It can be understood that if the three pressure sensors are evenly arranged, in principle, the initial readings of the three pressure sensors and t...
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