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How to identify the magnet magnetic size

by:Newland     2020-04-30
Magnet is a common thing in our lives, but you know how to distinguish between the same specifications of the magnet size? First approach, put two same size specifications of the magnet can be adsorbed on plane, such as: tiles, blade, such as iron, feel is to identify the size of the magnetic force. Often feel is the right feeling. No matter what do you want to do with, it is very important to feel a feeling. The second method is to use electronic scale: magnetic weak magnet with his density, density of small magnetic force is relatively small, the weight of the heavy magnetic force is relatively large, on the contrary light weight magnetic force is small. That is heavier the magnet is larger, when measuring the magnet, accurate to g. Third gauss meter, the test results is more straightforward, but note that when the test measuring magnet center were measured magnets, magnet edge if a test, a test center of the magnet is not accurate. Test magnet magnetic force is measured with gaussian machine commonly, other test methods are: 1. Herm Hertz (vibration testing coil, can test all the magnet flux; 2. Hall effect detection, the conventional way of testing in the form of gauss value, principle is the inside of the magnetic field under the traveling wave tube in the magnetic field of exhibit hall effect; 3. Combination of axial field, to describe the magnetic field distribution; 4. Fixed suction test; 5. High resolution test can measure 100000th of a magnetic field changes.
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