1. Definition
First, there are three utility parameters to determine the function of the powerful magnet:
Remanence Br: The permanent magnet is magnetized until the skill is full, and after the external magnetic field is removed, the retained Br is called the residual magnetic induction.
Coercive force Hc: The B of the permanent magnet magnetized to the skill is reduced to zero, and the required reverse magnetic field strength is called magnetic coercive force, which is simply referred to as coercive force. Fuqiang Magnetic Industry
The magnetic energy product BH: represents the magnetic energy density established by the powerful magnet in the air gap space (the two magnetic pole spaces of the strong magnet), that is, the magnetostatic energy per unit volume of the air gap. Since this energy is equal to the product of Bm and Hm of a strong magnet, it is called a magnetic energy product.
2. Magnetic field
The space in which the magnetic effect of the magnetic pole is a magnetic field.
3, the appearance of the magnetic field
The magnetic induction intensity of a specified orientation of the permanent magnet external surface.
4, choose a powerful magnet
Before choosing which strong magnet to pick, should you know what effect the strong magnet needs? Strong magnet
5, the primary effect
Move an object, fix an object, or lift an object.
6, the shape of the required strong magnet
Disc-shaped, circular, square, tile-shaped or extra-shaped.
7, the specification of the required strong magnet
Length, width, height, diameter and tolerance, etc.
8, the suction of the required strong magnet, hope for the quotation and quantity and so on.
The compass is created based on the nature of a powerful magnet.