Know the table magnetic calculation force
Publish: 2021-04-14 10:17:34
1. The simplest way is to use a more sensitive compass, put the compass flat on the table, and then hold the watch, close to the top of the compass, and do a quick back and forth sweep action. If the pointer of the compass swings, it means that the watch has magnetism
a watch is magnetized in a certain direction (magnetic pole direction), and the magnetized watch has a great influence on the compass. Therefore, when doing this test, we need to constantly change the various positions of the watch to repeat the above experiment
there is a stepping motor rotor in the quartz watch, which is also made of magnetic steel. If the quartz watch does this test, the pointer of the compass will also swing. But the quartz watch has no remanence, so it doesn't need demagnetization
you can go to the clock repair shop for demagnetization
a watch is magnetized in a certain direction (magnetic pole direction), and the magnetized watch has a great influence on the compass. Therefore, when doing this test, we need to constantly change the various positions of the watch to repeat the above experiment
there is a stepping motor rotor in the quartz watch, which is also made of magnetic steel. If the quartz watch does this test, the pointer of the compass will also swing. But the quartz watch has no remanence, so it doesn't need demagnetization
you can go to the clock repair shop for demagnetization
2. You'd better take one stapler and take the next.
3. The simplest way is to use a more sensitive compass, put the compass flat on the table, and then hold the watch, close to the top of the compass, and do a quick back and forth sweep action. If the pointer of the compass swings, it means that the watch has magnetism. Watch magnetization has direction, only in a certain direction (magnetic pole direction), magnetized watch has great influence on compass. Therefore, when doing this test, we need to constantly change the various positions of the watch to repeat the above experiment. There is a stepping motor rotor in the quartz watch, which is also made of magnetic steel. If the quartz watch does this test, the pointer of the compass will also swing. But the quartz watch has no remanence, so it doesn't need demagnetization. Demagnetization can go to the clock repair shop
4. Remanence refers to the surface magnetic inction of a specific standard sample after saturation magnetization
surface magnetism refers to the surface magnetic inction of a magnet
the two units are the same, and there is no specific formula to follow. The size of the surface magnetism is related to the size of the magnet and the magnetization mode.
surface magnetism refers to the surface magnetic inction of a magnet
the two units are the same, and there is no specific formula to follow. The size of the surface magnetism is related to the size of the magnet and the magnetization mode.
5. The theoretical limit of surface magnetism is half of remanence. That is to say, if the remanence of n52 is 15000gs, the surface magnetism can be close to 7500gs
the limit is that the length of the magnet is much larger than the size of the polar surface< Moreover, the surface magnetism is only related to the aspect ratio and remanence
if you think the area is large, the surface magnetism is also large. That's because the area of the magnet must be much larger than that of the Hall probe, otherwise the test value will be smaller or even much smaller
the limit is that the length of the magnet is much larger than the size of the polar surface< Moreover, the surface magnetism is only related to the aspect ratio and remanence
if you think the area is large, the surface magnetism is also large. That's because the area of the magnet must be much larger than that of the Hall probe, otherwise the test value will be smaller or even much smaller
6. Thank you for your explanation. Remanence refers to the magnetized surface stress of a specific standard; Remanence table magnetic in full saturation magnetization to determine the type of magnet said remanence to determine the same shape of magnet table magnetic background matter, please do not have relevant specific information, reference ah department to understand, thank you for your advice
7. Two methods can be found on the Internet for reference:
1,
1. Just have a magnet at home. Shake the watch with weak magnetic field about 2 cm above the strong magnetic magnet for 3 / 4 times, and the weak magnetic field on the watch will be absorbed by the magnet. Then, check it with a compass to see if the watch is demagnetized
2. Demagnetizer used in supermarket can also demagnetize
3. When using the above demagnetization methods, you should pay attention to the method. If not, the watch will be magnetized instead of demagnetized Pay attention to the positive and negative poles)
Add:
the simplest way to know whether a watch has magnetism is to use a compass to check it
if the compass is close to the watch or the watch is close to the compass, the compass will move, indicating that the watch is magnetic; If the compass doesn't move, it means the watch doesn't have magnetism< Second,
1. Demagnetization can be carried out in the clock and watch repair shop. It should be a simple and easy task, but it also requires all-round demagnetization
2. If it's inconvenient to maintain the watch far away from the clock shop, you can find a piece of iron (ring) with a circle shape in the middle and without magnetism, and put it up on the table. Slowly put the watch through the iron circle, and the magnetism on the watch will be absorbed by the iron
3. You can also put the watch on a clean iron plate without magnetism, so that the magnetism of the watch will graally disappear after two days.
1,
1. Just have a magnet at home. Shake the watch with weak magnetic field about 2 cm above the strong magnetic magnet for 3 / 4 times, and the weak magnetic field on the watch will be absorbed by the magnet. Then, check it with a compass to see if the watch is demagnetized
2. Demagnetizer used in supermarket can also demagnetize
3. When using the above demagnetization methods, you should pay attention to the method. If not, the watch will be magnetized instead of demagnetized Pay attention to the positive and negative poles)
Add:
the simplest way to know whether a watch has magnetism is to use a compass to check it
if the compass is close to the watch or the watch is close to the compass, the compass will move, indicating that the watch is magnetic; If the compass doesn't move, it means the watch doesn't have magnetism< Second,
1. Demagnetization can be carried out in the clock and watch repair shop. It should be a simple and easy task, but it also requires all-round demagnetization
2. If it's inconvenient to maintain the watch far away from the clock shop, you can find a piece of iron (ring) with a circle shape in the middle and without magnetism, and put it up on the table. Slowly put the watch through the iron circle, and the magnetism on the watch will be absorbed by the iron
3. You can also put the watch on a clean iron plate without magnetism, so that the magnetism of the watch will graally disappear after two days.
8. As far as neodymium iron boron magnets are concerned, if they are more professional, they are remanence, coercivity, intrinsic coercivity, maximum magnetic energy proct, working temperature, etc. if they are less professional, they are the most common highest point of surface magnetism (in Gauss). Generally, the magnetic force of a square magnet is closely related to the length, width and height of the magnet, the material used and the direction of magnetization. Generally speaking, the smaller the size ratio of working face to magnetization direction, the larger the data at the highest point of surface magnetization.
9. 1. Cannot calculate. Most of the measured results of different magnets of the same material are different, and the surface magnetism of the same magnet may be different under different conditions
2. A magnet is an object that can proce a magnetic field. It is a magnetic dipole and can attract ferromagnetic materials such as iron, nickel, cobalt and other metals. The determination of magnetic pole is to hang a magnet with a thin line. The magnetic pole pointing to the north is called the north pole or N pole, and the magnetic pole pointing to the south is the guide pole or S pole If we think of the earth as a big magnet, the earth's geomagnetic north pole is the N pole, and the geomagnetic south pole is the S pole.) Magnets with different poles attract each other and magnets with the same pole repel each other. Guide pole and North Pole attract each other, guide pole and guide pole repel each other, and North Pole and North Pole repel each other.
2. A magnet is an object that can proce a magnetic field. It is a magnetic dipole and can attract ferromagnetic materials such as iron, nickel, cobalt and other metals. The determination of magnetic pole is to hang a magnet with a thin line. The magnetic pole pointing to the north is called the north pole or N pole, and the magnetic pole pointing to the south is the guide pole or S pole If we think of the earth as a big magnet, the earth's geomagnetic north pole is the N pole, and the geomagnetic south pole is the S pole.) Magnets with different poles attract each other and magnets with the same pole repel each other. Guide pole and North Pole attract each other, guide pole and guide pole repel each other, and North Pole and North Pole repel each other.
10. I don't know what you mean when your center is magnetized. Generally speaking, there will be a magnetic field on the surface of hard magnetic material after magnetization, and the surface magnetism of different points on the magnetized surface can be measured. If you talk about the magnetic field in the geometric center of the magnetized surface, then the values of the surface magnetic field and the central magnetic field are very close. But if you have multipole magnetization, the surface magnetism of the center point is very different from other surface magnetism.
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