What is the difference between the magnetism of a magnet and the surface gauss value of a magnet?

Many people say how much the magnetism of a magnet and thesurface gauss value of a magnet are? Specifically, what are the concepts of the magnetism of a magnet and the surface gauss value of a magnet and how are they defined? What is the relationship and influence between the two?

First of all, the definition of surface gauss value: surface gauss value refers to the magnetic induction intensity of the magnet surface. The table data presented on the magnet surface is only a data reflection of the magnet itself on the measuring tools. Since the induction of each measuring tool is not necessarily accurate, there is no definite specification for the surface gauss value of magnet products. The most common thing is to enlarge the tolerance range of the data or make requirements directly according to their own products. After all, The data is only a considerable performance.

Generally, Gauss meter, also known as Tesla meter, is used to measure the surface gauss value of magnet meter. However, because the products produced by each manufacturer do not have a specific standard, and because the hall sensing elements on the Gauss meter are different, and the hall sensing intensity is different, the measured surface magnetism is also different. In the simplest way, for the same product, we use the domestic Gauss meter. If the measured surface magnetic intensity is 3000gs (GS: surface magnetic unit) and replace it with the Japanese Gauss meter, Because of the quality problem of the hall sensing element on the Gauss meter, the magnetic field measured by the Japanese Gauss meter is about 200gs higher. Therefore, if you only look at the magnetic problem of a product, you can't judge whether the magnet product is good or bad.

We can test the magnetic properties of a magnet (such as a big needle or a small iron needle), and then put it into a magnet (such as a magnet) to verify the magnetic properties.

2. The magnet is placed in scrap iron (or pin) with some substances (such as wood and glass) separated, and the magnet still absorbs iron. 3. Put the magnet into wood chips or copper chips (powder). Magnets cannot suck up sawdust or copper.

From the above small experiments, we can see that strong magnetism can attract more pins. If the magnetism is weak, the pins that can be attracted will be small. If we use a Gauss meter to measure these two magnets, the result must be that the magnet that attracts more pins has a higher magnetic surface. What does this mean? Of course, the stronger the magnet, the higher the magnetic energy product. For a simple example, we compare magnetism to water, just like a bucket full of water. The bucket with strong magnetism is heavier than the bucket with weak magnetism. Why is it heavier, The only explanation is that the density of water in a strong magnetic bucket is higher than that in a weak magnetic bucket.

It is not difficult to see that the internal relationship of magnetic force, magnetism and apparent magnetism, which are professional terms we often talk about, involves many physical properties of magnets. For products of the same specification, the magnetism may be different due to different magnetic energy products. Here we should state that surface gauss value is not equal to magnetism.