1. Strong magnet 1

2.2 small batteries

3. Copper wire (about 0. 1mm) and copper paper.

4. Pen case

The following are the production steps:

1. Place two batteries side by side and connect the electrodes with copper paper or other conductive materials.

2. Place the magnet under the shell of the filter cartridge.

3. Pass a copper wire with a diameter of about 0. 1mm between the two poles at the bottom of the refill, and insert its end into the positive and negative poles of the battery.

4. Install copper paper sheets at both ends of the copper wire to connect the other end of the battery.

5. Put the assembled magnetic levitation pen core into the pen core shell and install other accessories to complete the manufacture of magnetic levitation pen.

It should be noted that making a magnetic levitation pen may require high electrical and mechanical skills. For those who are not familiar with these skills, it is best to seek professional assistance.

At present, the mechanical level gauge commonly used in the market is probably the maglev level gauge, which has two types: top-mounted and side-mounted The main components of the magnetic float level gauge are the measuring cylinder, the floating ball and the display part of the magnetic flip plate. The measuring cylinder of the side-mounted magnetic float level gauge is connected up and down, and the side of the container is perforated up and down.

When the liquid rises from bottom to top, it enters the measuring cylinder of the magnetic float level meter from the lower flange, and the liquid floats the floating ball in the measuring cylinder, because the density of the floating ball is the same as that of the liquid, and the difference between the two density values cannot be too big. Driven by the buoyancy of the liquid, the liquid rises and the floating ball rises.