We know a lot of electronic products have radiation, just have the size of the amount of, for example, mobile phone, when on the phone has radiation, however, is within the scope of security, therefore, not only the harm of human body, so, whether there is a strong magnet radiation powerful magnets of radiation is the existence of a strong magnetic field, and the impact on the performance of the near its electronic products.
Professional term that is to say, less powerful magnet magnetic path.
Therefore under the distance will be higher than ordinary magnet provided by suction strong magnet.
30 cm for single magnet, both powerful and common, is unable to induction enough suction.
Of course enough magnetic block configuration can achieve this effect.
Is refers to the conventional ferrite or other materials.
In fact, powerful magnets compared with ordinary magnet, its characteristic is a big table, the ratio is about 4 times the left and right sides.
Another characteristic is a high gradient.
Gradient magnetic field changes on behalf of the unit length, table field to infinity, for example, the more quickly, the magnetic field strength of the higher gradient, on the other hand, a strong magnet magnetic field change with distance is bigger.
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