Many people are quite familiar with magnets and have used them. But when asked about the use of magnets in their daily lives, they find it difficult to answer. So in this article, let’s take a look at the list of applications magnets have in our daily lives.
In describing magnetic sources, electromagnetic induction and magnetic devices of magnetic materials, we have mentioned some practical applications of magnetic materials. Magnetic materials have been widely used in all aspects of traditional industry.
For example, electrification would not be possible without magnetic materials, because generators, transformers and motors for power transmission, speakers for telephones, radios and televisions would be used to generate electricity. Magnetic steel voice coil construction is used in many instruments. All of this has already been said in other parts of the story.
Extended reading: Everyday uses of magnets
In medicine, the use of nuclear magnetic resonance (NMR) can diagnose human tissue abnormalities and determine diseases, which is the nuclear magnetic resonance imaging technology we are familiar with.
The basic principle is that the nucleus is positively charged and has spin. Under normal circumstances, the arrangement of the nuclear spin axis is irregular, but when placed in an external magnetic field, the spatial orientation of the nuclear spin transitions from disorder to order, and the magnetization vector of the spin system gradually increases from zero. When the system reaches equilibrium, the magnetization intensity reaches a stable value.
If the nuclear spin system is subjected to external action, such as a certain frequency of radio frequency excitation of the nucleus, it will cause resonance effects. After stopping the radio frequency pulse, the nuclei strengthened by the spin system cannot maintain this state, they will return to their original arrangement in the magnetic field, and emit weak energy, which becomes a radio signal. When these signals are detected and spatially resolved, a picture of the distribution of nuclei in motion is obtained.
Nuclear magnetic resonance (NMR) is characterized by a flowing liquid with no signal, known as the flow effect or flow blank effect. As a result, blood vessels are grayish white tubular structures, while blood is black and has no signal. This allows the blood vessels to easily separate the soft tissue. Magnetite is a traditional Chinese medicine that uses magnetic differences in different components of the blood to separate red and white blood cells.
In addition, the interaction between the magnetic field and the human meridians can achieve magnetic therapy, which has a unique effect on the treatment of a variety of diseases. At present, magnetic therapy pillow, magnetic therapy belt and other applications. Iron removers made of magnets can remove iron particles from flour, magnetized water can prevent boiler scaling, and magnetized seeds can increase crop yields to a certain extent.
Extended reading: Application of permanent magnets in the medical industry
Sunspots are areas of intense magnetic activity on the sun, and the explosion of sunspots can have an impact on our lives, such as temporary disruption of radio communications, so studying sunspots is of great significance to us.
Geomagnetic changes can be used to explore mineral deposits, because all substances have strong magnetic or weak magnetic, if they gather together to form a deposit, it will inevitably interfere with the nearby geomagnetic field, resulting in geomagnetic field anomalies. According to this, we can measure the earth’s magnetism on land, sea and air, get a geomagnetic map, analyze and further explore the magnetic anomaly area on the geomagnetic map, and often find unknown mineral deposits or special geological structures. Rocks of different geological ages often have different magnetic properties, so we can judge the change of geological time and the change of the crust according to the magnetic properties of rocks.
Many mineral resources are symbiotic, that is, several minerals are mixed together, and the magnetic properties of these minerals are different, using this feature, people have developed a magnetic separator, the use of different components of minerals magnetic different, magnetic field strength differences, magnets on the attraction of these substances is different, so that the different magnetic minerals mixed together are separated to achieve magnetic beneficiation.
Neodymium magnets and other magnetic materials have also been widely used in the military field. For example, ordinary mines only explode when they make contact with a target, so their usefulness is limited. If a magnetic sensor is installed on a mine, because tanks or warships are made of steel, when they are close (without touching the target), the sensor can detect changes in the magnetic field, which can cause the mine to explode and increase its lethality.
Thank you for reading our article, we hope it helps you better understand the application of magnets in real life. If you want to learn more about magnets, we recommend you visit Newland Magents. Neodymium magnets and other non-rare earth permanent magnets are very competitively priced.
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