How the magnetic watch base works
How the magnetic watch base works
The working principle of the magnetic watch base can be summed up in a few simple words: breaking and connecting the internal magnetic poles. The following is a detailed introduction to the working principle of the magnetic watch base.
The shell of the magnetic watch base is two pieces of magnetic conductors, separated by a non-magnetic copper plate in the middle. There is a rotatable magnet inside, which has n and s poles along the diameter direction.
When the magnet is rotated to the middle position, the magnetic line of force forms a closed circuit in the two magnetic conductors respectively, and the table seat can be easily taken away; after rotating 90 degrees, the ns poles are respectively facing the two magnetic conductors, at this time, from the n pole to the magnetic conductor to the guide rail To another piece of magnetic conductor to the s pole, forming a closed magnetic field line, which can be firmly attached to the guide rail.
Diagram of the working principle of the magnetic watch stand:
The magnetic watch base turns the magnet inside by turning the handle. When the two poles (N or S) of the magnet on the magnetic table base are in the up and down direction, that is, when the N or S pole of the magnet is facing the base of the soft magnetic material, it is magnetized. This direction has a strong magnetism, so it can be used for suction. Live on steel surfaces. And when the two poles of the magnet on the magnetic table stand are in the horizontal direction, and when the middle of the NS is facing the base of the soft magnetic material (the middle of the long bar magnet has only a very small magnetism, it can be ignored), it will not be magnetized, so this When there is almost no magnetic force on the base, it can be easily removed from the steel surface.
